Not sure what you want, but I've been using KCHighlights mounts for my aux lights. Under $20 each if you hunt around, fiber reinforced plastic and TOUGH. Lights have never moved in 100k plus miles of on and off pavement riding.
LINK Note that some sellers sell them in pairs, others as individual mounts. KC isn't the cheapest place to buy them, but that's not a horrible price either. You want the 7/8"-1" size. It uses a rubber insert if you're mounting them to 7/8" bars, no insert on 1" bars.