I am going to start making some dice soon (this isn't an advert as I'm still working out the methods!), and I'm wondering if there's any dice that you might like to see that you simply haven't been able to find anywhere else?

I have a couple of cool ideas I want to try, but I would also love to hear of other ideas I might not have considered!

I think a set of "potion bottle" D4s would sell well as CLW and HW spells and potions.  They could have 8 'sides' and just repeat the numbers 1 through 4 to make them more 'bottle shaped.'  I kinda like the shape of the classic Jeanie bottle, a long neck and wide bottom.  Good luck.  I hope they come out nice.

Wood pulp dice... see also charcoal briquette dice.

Quote from Erokow32 >>

Wood pulp dice... see also charcoal briquette dice.

I'm not 100% what you're after with Wood Pulp dice, but charcoal dice sounds interesting. That's got the gears turning, for sure. Now to work out how to do it without them being unbalanced...

Slime/ooze themed dice! Imagine a little gelatinous cube d6!  With little bones and stuff floating in them! (you could also make the d20 a liquid core die to match- if you had the stuff for it)

I had to custom order special dice in order to get a slime set since no one makes them. 

and if you are thinking of unique material to make dice out of, i haven't seen anyone really do bone/horn dice yet outside of a few d6s. and even those are really rare. 

Oddly enough I've always wanted magnetic dice. I know that sounds stupid but it would be fun to play around with, toss it into a nice dice-arena with a metal bottom panel. Would help prevent cocking at least. 

I like the idea of ooze dice, I will see what I can work out for that!

Magnetic dice, I'm not sure how easily you could do that? Embedding the magnets would need precision to not be weighted. I will have a ponder on that one for you...