2 parts  FOOD GRADE Calcium Carbonate

5 parts Garden Lime

4 parts Bonemeal

1 part mineral supplement for birds


Mix in enough water to make a smooth gravy. You may want to grind up a cuttle bone and mix in.

Pour into molds, ie paper cups, ice trays, cute cookie molds etc. Add some food coloring to make pretty colored blocks
.
Insert a U shaped wire or the bolt and drop washer of a diameter to cover most of the cup size.

Let cure for several days depending on size. When totally dry you may drill holes in the blocks to aid in hanging or to hang on toys etc.