These cast plaster heart charms are fun to make and would make a great gift for Mother's Day or Valentines Day. You could also hang them on a Christmas tree or your own decorative tree at any time of the year, or tie them on to a present for some glamorous wrapping.
Time: 20 minutes to cast, 24 hours to dry
Age: 5-10's, Over 10's
Disposable cup to mix the plaster
Silicone or flexible rubber heart ice cube tray
Tempera (poster) powder paint
Wooden skewer or cotton buds (snip end off)
A big bag of plaster costs just a few dollars from a discount craft shop so these charms are very cheap to make
Our rubber ice cube molds cost 1 dollar each in IKEA. The molds can be washed and reused
Put the plaster powder in an old plastic cup or tub and add several tablespoons of tempera (poster) powder paint. Mix the powders. Avoid skin contact and be careful not to inhale any powder.
Plaster powder and powder paint added
Mix the plaster according to the manufacturers instructions. We used two parts plaster to one part water. We added the coloured plaster powder to the water and stirred until there were no lumps. Don't pour wet plaster down the sink as it could harden in the pipes - instead mix your plaster in a disposable cup or tub and then throw away any excess in the rubbish.
Pour into your rubber/silicon ice cube tray mold and add some glitter on top
Choose how thick you fill the mold according to how thick you want your finished charm to be. Make sure it's not too thin so that the finished charm doesn't snap
Wait around 15 minutes for the mixture to start to set then poke a wooden skewer or cotton bud cue tip (with the cotton end cut off) into the mix where you want your hole for your ribbon to be. The skewer should stand up in the setting mix
If you're using a cue tip, don't forget to cut the cotton off the end you dip into the mix
Leave to set for at least 24 hours
When dry, remove the hearts from the mold (with sticks still in). They should pop out easily and have a smooth finish
Poke the skewer right the way through to complete the hole then remove and discard.
Tie ribbon on to the charms
You could make different shapes too - like these little fish.
Try different shapes
You could varnish your finished charm. If you don't have powder paint you could choose to make a neutral batch and then decorate the finished charm with acrylic paint. Why not make up a bigger batch of plaster mix and make a heart coaster or some plaster creatures to decorate too?