These can be found all over eBay for various prices. I haven't ordered a set yet but it's on my list of items to get.
http://www.ebay.com/itm/39-Shape-Style-Leather-Craft-Set-One-Hole-Hollow-Punch-Cutter-Tool-Handmade-diy-/181620923844?pt=LH_DefaultDomain_0&hash=item2a49735dc4
You need flocking to do it the easy way. Coat inside of box in white glue, dump in flocking, close lid, shake, empty extra flocking out and you are done.
Sorry. A dish towel lets the air flow while the bag collapses. Lay the towel under whatever you are forming and you shouldn't have any problems. The vacuum storage bags for compressing clothes for storage work also, the one way valve is super handy.
Nitric acid. I used it to remove nickel plating from brass. You might have a problem with the steel underneath reacting with the acid. Don't ask me where to get it. We use it at work for passivating stainless steel.
Can you turn on the adult section for me please. Thank you.
Name: Derek Thornton
UserName: Thornton
IP Address: 209.252.171.100
Email Address: thorntonrimfireinnovations@gmail.com