Simple bike trailer.
Made from a baby pushchair, bike tube and broom stick.
Only 3 main parts needed and min tools needed to build it
Speed does not matter for the trailer as it has good build in shocks and tires are not super hard.
It follows the bike rather well also so its easy to pull. Feels very light
Step 1: Items Needed
Some things are needed at first.
a. Try find an old baby push chair.
b. Broom stick or some sort of light strong wood pole
c. Old bike tube
Time taken to build up was about 40min.
Easy to make.
Cost : 0 depending on what parts u can find.