Blue Dogs Tea Towel Arthouse Unlimted. The Blue Dogs design presented on this 100% organic tea towel are a deceptively simple series of beautiful drawings made solely in blue pencil. As collaborative artworks, the characters of the artists and the animals they depict shine through. Bringing delightful designs to the practicalities of life, this range does justice to our canine companions and to the irrepressible talents of the ARTHOUSE Unlimited artists.