Making your own chalk paint
Plaster of Paris Chalk Paint Recipe
1 Cup Latex Paint (eggshell or flat)
2 ½ TBSP Plaster of Paris
1 ½ TBSP Cool Water
Mix cool water and Plaster of Paris first make sure there are no lumps.
Then add paint
Mix mix mix.. make sure there are no lumps
Give it a try... let me know if it worked for you.