Chupa Caps were given away in special containers that came with 2 Chupa Chups lollipops. I have plenty of Chupa Caps and some metal Slammers. Despite the Slammers looking the same, one actually has slightly different colours, and it's not just because I put my scanner on a different setting. The first few caps are actually holographic. They are scanned at 100 dpi and 100%.

I also have Animal Chupa Caps, Glow in the Dark Chupa Caps, Warrior Chupa Caps and City People Chupa Caps, click on the logos above to see them.