So I noticed I had over 450 scrap metal as it is ridiculously common to drop. Then i decided, instead of selling it for 1 crown each to a vendor I'll collect as many as I can to see if there's a max item cap. Donations can be made to Puntrocket in game (in the form of scrap metal).

Donators:

Kalign ~120
Zongo: ~150
Chaoticmatter: ~170
Finesterus: ~170

Currently I'm sitting at 910 scrap metal! 4/27/2010 1pm EDT

Updates Soon!

Edit: I now have 1066! 4/27/2010 3pm EDT