Makerblock 3D Print Models
10000+ 3D Print Models
printables.com
MonoBlock v3.15 (8MM) for Ultimaker 1, 2, 2+, GO, Connect, Extended
cults3d.com
MaxiBlocks - Large Easy to Print Building Blocks (40mm x 40mm)
cults3d.com
Blockbot - Poseable Retro Robot Model Kit - press fit - no AMS required