Shout out to Mike Waldt for his useful video). I made small 1.5" wheels using a holesaw from offcuts from the roughly quarter board of 19 mm ply from B&Q. B&Q sawed me two pieces across the width of a half board each 320 mm long, I cut the boards square at 320 mm on the bandsaw, screwed them together, and marked a 12.5" (317 mm) circle and a 11" (279 mm) circle and bandsawed that out, then routed and cut the steady arms from the piece which was left after cutting the circle. My trestle bench came in handy as I don't have space for a proper bench in the workshop, and the old workmate is getting a bit wobbly. The offcuts from the centre of the circle were used to make the base. The Coronet No. 3 has 4.5" between the lathe bed bars. A quick search through the nuts and bolts box, some M5 and M8 wing nuts from B&Q, and a length of M8 threaded rod I had lying about and we were nearly done. I ordered a second hand pair of kids' roller blades off eBay, but when they turned up it was clear the wheels would be too big for the 7.5" (190 mm) diameter urn I was turning, so I cut some wheels using a 1.75" hole saw and cleaned then up on the lathe to give me 1.5" (38 mm) wheels, the holesaw pilot drill luckily suiting the M5 bolts. The wheels just have an extra washer between them and the steady arm, and a nylock nut, there's no bearing. On a hollow urn with wooden wheels it rumbles like a good 'un but it works!