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Keepsake DIY Mystery Kit


Mystery Kit for DIY Keepsake Jewellery -May kit will be a very special handmade teardrop or heart necklace! Just add any combination of breastmilk, ashes, hair or fur, cord or placenta to the mould, setting and tools included in the kit. Use “add to existing order” shipping option for free shipping (untracked).

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Keepsake DIY Mystery Kit for making breastmilk and memorial Keepsake Jewellery. Our first keepsake DIY mystery kit was in memory of Husky the Cat, beautiful friend of Nikki Kamminga and my little family. You all helped me raise enough funds to have him cremated and I’ve decided to continue the mystery kits. If you buy more than one, they will each be different!

You can make a breastmilk, lock of hair, cremation ashes, umbilical cord or placenta piece bead using this special DIY kit. Use it to make something for yourself or a special client, and use the photos and story behind them to create a piece for sale.

You will receive:

You’ll also need to provide yourself (not included):

Mystery Kit Contents

If it’s a ring, it will be an adjustable size unless you add a ring size in the comments. If it’s a necklace it will NOT contain a chain but you can add one here. For beads, it will contain either glue or a bead core flaring ball. Follow our tutorials here to prepare your clients’ elements or buy a pack of 5 or 10 sachets of Breastmilk Preservation Powder here!

PRO TIP: did you know you can antique your silver with a little liver of sulphur (LOS). I use a tiny shot glass, a few drops of LOS and some water then add the silver. After a few minutes the silver will be coated with a black or brown layer. If it’s brown, repeat until the silver is as dark as you need. Polish up the high points back to silver with a silver polishing cloth. Please note, this liquid smells like rotten eggs, you can even use a smashed up boiled egg in a bag with the silver to add this effect. This is known as antiquing or a silver patina and I love the effect.

Please read our Terms and Conditions and FAQ page before ordering.

Using Breastmilk Preservation Powder

Learn how to use the breastmilk powder with this video, the full blog is here with all the supplies you’ll need

Using Silicone Moulds

Because they are made from water-clear silicone, our moulds (molds) they are ideal for all types of resin including UV curing resin. No need for polishing or sanding. We use a strong but flexible high quality silicone and each mould is hand made and checked.

Simply mix your resin with colours, sparkles, flowers or your clients’ elements or inclusions like breastmilkbaby’s first curl, umbilical cord and placenta. Then add to the mould and cure in the usual way. Or you can add your resin to the mould before adding elements.

How to Use A Charm Bead Mould

If working with UV resin we recommend you work in layers to achieve beautiful depths of colour. Tutorials below on my YouTube channel.

These moulds are suitable for use with resin (UV resin, EcoResin, epoxy resin or polyester resin), concrete, polymer clay (air drying, heat curing such as Premo and Sculpey). We recommend removing the polymer clay from the mould before baking if not using air drying clay although they can be heated up to 130°C. To remove unset clay without warping it, we recommend cutting the mould vertically around halfway down. Although we use a food-safe silicone, we don’t recommend these moulds for use with food due to the manufacturing process.

Mould Life and Care

These moulds are sold for semi-permanent use and will degrade with use. This is normal and not classed as a fault. Please see our mould care information for more info. The life of your moulds will depend on the material used, the number of uses, how gentle you are using it, good storage, careful washing and environmental factors.

Test Cast

It is very important you do a test cast with each mould to check for imperfections, to remove any dust attained during transit and to make sure you are comfortable using the mould before making any jewellery. We advise you use UV resin for this and coat the inside of the mould in resin before curing, removing and making a visual check. If there is a problem with the test cast please get in touch within 7 days of receipt.

Mystery Kit for DIY Keepsake Jewellery – Settings and Findings

We recommend that you do not overfill the mould but allow a little extra resin in the pouring spout for bubbles to rise and to provide a grip to remove the cast. You can usually trim the excess before sanding, dome with resin if required. Full instructions for the Mystery Kit for DIY Keepsake Jewellery will be provided.

For a bead kit – finish by glueing in a pair of inserts (known as grommets) as shown in the lock of hair bead video, or a Forever In My Heart ♥ core. We cannot guarantee a perfect fit/coverage due to the handmade nature of the moulds and differences in cutting/sanding the casts and doming. Each mould will be slightly different in pouring spout size. If you are unsure please order a single mould to test, make a test cast and finish to check your settings.

Inserts are compatible with all size bead mould, whereas the core sets are only compatible with medium, medium plus, faceted and honeycomb moulds. Cores are supplied with a 6mm ball bearing which you can use to gently flare out the back of part A to fit it in place, or you can use a doming punch set. Some clients do use the cores in large beads, and glue them in as they are too short to flare in a large bead.

Keepsake DIY Mystery Kit – Bead Kits

The silver in these kits, either glue-in inserts or fitted cores, are all 925 sterling EcoSilver. Please see our blog on Types of Solid Silver which explains the care instructions for the silver and the metal content.

How To Glue-In Inserts

Here is a video showing you how to glue in inserts with E6000 vegan glue

How To Fit A Keepsaker Supplies Core

Here is a video showing you how to fit a core with the ball bearing (included) and a lightweight hammer like this one

Here is a video showing you how to fit a core with a doming punch (easier!)

Contact Us

If you have any questions about the Keepsake DIY Mystery Kit please email us on or get in touch on our Facebook page Keepsaker Supplies (click here).

This page contains affiliate links meaning we may receive a small amount of commission based on your purchases with no extra cost to yourself.

Additional information


bead, earrings, necklace, ring

silicone type

water clear

country of manufacture


ships from

United Kingdom

precious metal


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