OTis & OtTO
Otto & Otis are a series from artist Scott Tolleson. These were released in 2010 in a limited amount of 200 pieces from each set. These are also part from Stolle's Neighborhood and of course released through his own studio named StolleArt Studio. The pieces are 2.5 inches or 6 centimeters. There were only 3 sets released.
Orange & Purple
The colours match pretty well. I really like the purple one.
Blue & Red
I do think they're colour is pretty special, I found they're combination a bit odd.
Yellow & Green
My favourite ones are these. Just look at the nice bright colours!