I got a free gallon sized bag of plaster of paris last summer. The stuff's pretty cheap anyway, but free's even better. I found the bag again when I was clearing out the craft room (we're redoing the floors, more on that later). I can't keep keeping stuff around and not using it!
Because plaster of paris is fairly porous, I figured it would hold a scent fairly well.
Red Hot Hearts: a Scented Gift
Gather your supplies:
heart mold (I used a candy mold, make sure you only use it for nonfood use after this)
1/2 cup plaster of paris
1/2 cup water
plastic cup (also don't use this for food in the future)
red paint (I used Plaid's Outdoor/Indoor Gloss Acrylic Enamel)
sealant (I used FolkArt Outdoor Gloss Sealer)
clove essential oil (you can totally use another scent, but they'll smell less like redhots. I suppose cinnamon would have been more appropriate).
perfume oil (I used Gluttony by Black Phoenix Alchemy Lab)
Ribbon (I used cream stretch lace seam binding and a green 1/8th inch satin ribbon)
Aleene's Tacky Glue