I'm fascinated by the Jodia bazaar in Karachi (
found on the Getty gallery). Tops must still be popular in Pakistan!
The tops that look like diabolo cups are new to me. The cups are metal, but some are painted and I first thought they were plastic. The tips are made with a pointy bolt and a nut. I wonder if the cup is repurposed from another use. I need to find one.
This shop is probably a reseller that mostly sells to retail shops (but would also sell to individuals.) Gus took me to visit the same thing in Mexico city: there were half a dozen spintop resellers in one corner of a large market.