From a cheap $3 bag of rings from Walmart I made this cute necklace, it took e less than 5 minutes, seriously. I made a chunky bracelet as well, you can see it here.
I used flat nose pliers, a wire cut plier, a chain and 2 jump rings
I cute the chain in half first half. Then I attached one jump ring to both sides of the bigger ring
6 minutes later, using it! love it!