Drill And Router Bit Stand
My wife used to do flower displays, but packed it in.
Among her 'leftovers' was an assortment of the foamy fiberous blocks that you push the flowers into... don't know the name of it.
The pieces were about the size of a brick, but simple to shape with a bread knife and make ideal holders for your drill bits, router bits, and mine even holds my nail punches and an assortment of other bits.
No drilling, no mess, just push the shank in, and they are light and easy and will not cause your shanks to rust.
Just had to re-roof the bach recently, and banging the roofing nails through the coro was giving me many a sore thumb because of the bounce back.
A simple idea is to drive a similar nail through a piece of 2x1 about a foot (300mm) long. Allow the nail to protrude about 12mm through the other side you nailed it from.
A smart whack with the hammer drives a small hole through the coro making nailing much easier, and several 'starter holes' can be done at once.