They look so much cuter with bandanas, rather that collars, tags and leashes! Here, the Poopers are wearing purple with pink polkadots, not their usual skull and crossbones, or hearts and peace signs. That’s another tessellation.
And the same cuties, zoomed-out.

Poopers with Purple and Pink Polkadot Bandanas tessellation by Francine Champagne, ©2013
2018-10-16: Update of the colour scheme on these Poopers. Might or might not make it easier to understand. By no means the final version, having fun with this one.

Poopers with Pink Polka Dot Bandanas, with the updated colours, ©2018 F.Champagne