Tiger Tribe | Colour by Numbers - Mermaids & FriendsSweet, knitting mermaids and playful seal pups abound in Colour by Numbers Mermaids and Friends, a colouring set for little creatives. This ones for the kids who like some direction with their artistic exploration as the built in colour key encourages confidence with colour placement. Colour by Numbers is great for focus and concentration and promotes a sense of achievement once complete. Our thoughtfully packaged, premium activity sets are designed