This heart shaped coaster is just the thing to brighten up a tray for breakfast in bed on Mother's Day (or Valentines Day). It's cast from plaster of paris but is surprisingly easy to make. A big bag of plaster costs just a few dollars in discount craft shops and the mold is made from cardboard so this is a cheap activity.
: 20 minutes plus 1 day drying time.
: 5-10's, Over 10's
Tempera (poster) powder paint
Disposable plastic cup or tub to mix the plaster
Cut two long strips from your cereal box
Put the two strips together, printed sides facing outwards and staple at one end
Bend the cardboard strips back, printed sides facing inwards and bring to a point, making a heart shape. Staple at the point end
Check that your coffee cup will fit inside your heart
Place the heart on a sheet of aluminium foil and scrunch the sides up around the side of the cardboard. The cardboard mold is now ready to fill.
Add several tablespoons of powder paint to your cup of dry plaster powder and mix through.
Mix up your plaster according to the manufacturers instructions. We added half a cup of plaster powder to a quarter of a cup of water. As you shouldn't pour plaster down the sink, it's a good idea to make it up in a disposable container - eg an old plastic cup or tub which you can just throw away afterwards. Add the plaster to the water and stir well until you get a pancake batter-like mix with no lumps.
Pour the plaster into your heart mold until it is about half a centimetre thick
Leave to set for at least 24 hours, preferably longer
When dry, remove the cardboard mold.
Your heart coaster is now ready for the breakfast tray. Happy Mother's Day!
If you have left over plaster mix you could also make some heart charms
. Instead of colouring the mix, you could also paint your heart with acrylic paint. You could also make a bigger sized heart which could be used as a trivet or a teapot stand.
#5 to 10s