I came accross this fun and easy craft project for parents and kids – DIY salt painting. We will have a whole afternoon with girls to play with salts and it should be easy for them to start. Use white glue to draw any design first, it would be difficult for them to draw directly with glue, will be too messy as I can imagine, and I will draw for them as they tell me which design they will try, then mix salt with food coloring which will be safer for toddlers. Using a tray to prevent salt spread all over.
---- More DIY Ideas ----
The firework on black paper sheet is a wonderful idea to go, we can check out how busy mommy media made with detailed instructions and tips below: