I wanted to make a bike mounted device that would actively spread wildflower seeds along the wastelands and derelict areas that I often cycle through; thus helping our struggling pals, the bees and the butterflies.
I prepared to use what was to hand; a tennis ball and some bolts and brackets.
The trained monkey following a banana on a stick will come later.
Step 1: step 1
These are the parts-
A tennis ball
A 6mm nut and bolt
A strong strip of metal (this is a stabiliser bracket)
A bolt long enough to go through a tennis ball and two nuts (I used a 10mm bolt)