My memories of 'Slime' is the green or purple goop my brother and I played with as kids. The only reason I might wonder about using it is - the Little Man still has a strong tendancy to stick everything in his mouth. Did Miss 3 or 1 do the same? Sounds that it isn't toxic, but I might get him working with playdoh first and go from there. Slime sounds softer and fun :) I like the play afternoons!