Some of you are aware I/Tony make up albums of off the wall collections. Critters, ground scores, tiny coins, counterfeits, ugly busts, nautical, a big Chuckee Cheese, better off forgotten, whorehouse tokes, BIG silver, etc.
A little research today, and have created another. Coins made from various metals/alloys. There is a myriad of others, but their composition is so % minute, I don't include them. This now includes:
Aluminum
" bronze
Brass
Bronze
Chromium
Copper
Cupro-nickle
Gold
Iron
Lead
Maganese alloy
" bronze
Nickle
" brass
Silver
Steel
Stainless steel
Tin
Tombac
Zinc.
I've been in a real lull lately, collecting-wise. This puts the fire back in me. I'm looking through some tokes tonite, they're ripe with wierd stuff, paper, fibre, plastic, etc. With medals, I could maybe add about 10 more. Those foreign coins and other stuff I've been bored to death with lately has generated a new interest for me. Just wanted ya'll to know I'm inspired, even if I've got to make my own fun.

How about precious metal coins like palladium and platinum?

Or Titanium and Niobium? -> I like Niob, specially the nice coin Latvia issued.

Sounds interesting, change is good.

i like it

These were coins just laying around, not the locked-up stuff.
For niobium, I'll probably go fror a bi-met Austria 2003 25 euro.
Palladium, a 1967 1/2 hau from Tonga.
As for titanium, not much of a choice. Coins have been produced in this element, but working it is very difficult, and the dies wear out almost instantly. This would be a candidate, though:

Since you're going for tombac (which is brass), if you want to dig into specifics, you could also do various copper-nickel and billon alloys.

Cool. Anyone actually have a worthwhile set on this so far?

hmmm nice idea i might just do that ...hmmm

Don't forget Scareceium, Rareium and Unobtainium

i regret not taking chemistry ohh well have 2 dig up my old 9th grade chem text book an c the diff useable metal types