This is a simple Grocery Shopping Cart I quickly designed after not being able to find a printable one on here. I made a grocery bag (not to scale) out of packing paper and used this as a gift card holder for a Christmas present.
The model in the picture was printed at a scale of 80%. Everything pints flat and supports were used on the Bottom Rack and Rear piece. There are no tabs or anything but the pieces are just glued together after with CA (or superglue). I just held the pieces together and used a ca accelerator for an instant bond. The wheels where painted black to hide the seam.
(I need to correct the orientation of two of the stl pieces)