Wooden Rainbow Stacker Set - Rainbow Stacking Toy Set with Rainbow Stacker, Semicircle, Building Board - Waldorf Wooden Open Ended Stacking Toys - Great for as a Gift (Pastel Rainbow-3 Pack) :
Grimm's Large Rainbow in Pastel
Pastel Rainbow Large | Peachboy
Grimm's 12 Pastel Rainbow Friends – Jump! The BABY Store