Inspired by collar chains, I decided to make a tutorial on how to make chained rings. It is probably easier than the Three Finger Rings Tutorial and you wont need that many special supplies.
What you need:
Aluminium tube (approx. ø 2cm)
2 jump rings
Chain (approx. 4.5 cm)
Small saw for metal (PUK)
Drill (drill bit: ø2mm)
For the basic ring, you need to place the tube in the bench vise and decide how wide your rings should be. The rings I made are about 1cm wide. Mark the width on the tube and then saw it.
Now drill a hole in each ring. Make sure you place them near the edge of the ring otherwise the jump ring will not fit.
To prevent the metal from scratching you round off the edges with a rasp, especially the opening at the back.
Cut the chain and attach the jump rings to the ends and through the holes in your rings.