"I bought this (on clearance) for a monthly playdate with my moms group. There were 19 kids, ages 18 mo - 4 yrs, and the moms helped their own kids. It was a HUGE hit. The kids loved the hats and the moms were so happy to have something other than a foam sticker craft. (It's very hard to find a craft for that age range that can be done in a few minutes per child.) My son keeps pulling out the leftover kits and asking to make another one.
All the moms loved that the pieces all came pre-cut and individually packaged so there was no digging for an eye or a cheek, etc. The finished product was super cute, too!!
Tip: if you want the felt pieces to be extra sturdy, maybe hot glue them later, after the kids are done? Or sew them on for extra security? But otherwise, just have fun fun fun!"