Step 1: Bigger is better
I like it because it seems to be a little tougher and it is definitely larger than the altoid can.
Step 2: Grab a band aid tin
Assuming one is available to you in some way, grab a band aid can.
Step 3: Gather contents
You can make a different kits to fit your camping or tactical needs-
first aid items
other tactical items
fire starting kit
Other things that you may want to include to fit your needs.
Rem wipes ( I will probably add these to mine)
small spools of thread
bandages (why would you put these in a band aid can right?)
You may want to stuff some lint or a piece of fabric to keep small metal parts from clanging together if noise is a factor.