I haven’t uploaded any sketches of mine for a while. (It is admittedly a wee bit of a hassle scanning everything in.)

These sketches show some rough ideas I had for an evolution of the Christmas Cracker.

I scrapped the connection with Christmas, and instead went for something that iterated on the idea of human interaction, coupled with storage.

Where did the shape come from? Hah. p-orbitals. Wha? Yes, p-orbitals.
Well, you can’t argue that the design hasn’t got chemistry.
… I’m so sorry.

The general principal of the device is that you have a softer (but ribbed), inner sack which can be used to store items. This is placed into the central node, and a hard protective shell is placed around it. This shell locks into place, and can only be removed when all 4 shells are simultaneously depressed.