I used neon rainbow aquarium gravel for the base filler, but noticed it didn't contain any red so I threw in a bit of our homemade colored rice, which you can see how to make HERE.
I saved this mix afterward for many more sensory activities to come!
I then searched our toys and craft supplies for brightly colored objects to include in the bin. I don't often do such busy and packed bins, but this one was such fun to create and I do so many simple bins with the kids, that I thought it would be nice to give them something a bit different this time.
I actually left this one out on a sheet for days.
There were so many objects for the kids to discover, that it kept their attention for quite a while. It also gave lots of opportunity to identify the names and colors of objects with my youngest (19 mo).
Always use proper vigilance and precaution when younger children are exploring with this sensory material, and use your parental discretion when deciding if this or any activity is right for your child based on their age and developmental abilites.
For more Rainbow fun click on the photos below!
More Ways to Follow the Fun!