I've picked up quite old sport bench and weight stands from local recycling centre (two quid for whole lot!!)
After some time I discover that stands are completely useless for me, so I decided to keep the bench
and make bicycle repair stand from the stands.
Step 1: At first of all project.
I made couple sketches/measurements some of them you can see. (sorry about quality I haven't got time to draw them in Autocad of so I scanned some)
The original weight stands are made from square steel pipes/profiles 40mm diameter.
What I used:
some old front hub with skewer (actually only axle with cones/nuts and skewer)
piece of 5mm thick plastic
Some 10/8/6mm screws, washers and nuts
10/8/6mm drill bits