A few of my own bizarre packaging/smell bombs:
Mutant Love/Coco & Fiend Friend - "Fuck" C6
Came with a smashed and signed boiled egg, limited to 6 copies if I'm not mistaken.
Splinter Vs Stalin - "Pasta Electronics II" CDr
Housed in a cardboard pasta box, filled with cooked food and rubbish - everything was completely rotten and moldy by the time people got it in their mailbox.
Splinter Vs Stalin - "Fantasy '92" c40
With melted vinyl "sculptures"
I can't find the images now but I released a Frozen Corpse tape that came with a chicken foot, at least one Fecalove tape that came with a bunch of my pubic hair, a Fecalove / Ekunhaashaashtack split 3" CDr that came with a piece of cooked beef, and a Coco & Fiend Friend-labeled bag simply filled with (dried) cum.
That's what I can remember on the top of my head, but I'm sure there's more.