Blender: Theoretically, any blender would do. I'm using a Hamilton Beach personal blender
that was practically made for this project. The two key things needed are that:
1) The blender jar locks in place
2) There is a transmission disk, instead of the motor connecting directly to the blades
A M4-.70, 19cm long bolt: In a perfect world, a bolt of this size would exist, but the longest I could find was a 7 cm. If you can find one, great, otherwise you need: 3- 7 cm, M4-.70 bolts and 2 coupling nuts of the same size.
Old bicycle inner tube
3x4 metal plate
2- 1.5 in. diameter wooden wheels
4- 2 inch bolts of any size, and 4 matching nuts
2- 1 inch wood screws
2- M4-.70 Tee nuts
Bicycle rear rack: any rack should do.