Where can I buy a massive D4? [closed]

Simple question, really. I’ve had a look online on ebay, The Dice Shop, a couple of other online stores and just general Googling, but search engines don’t seem to be very geared towards buying massive D4s.

Anyone know of a place that sells over-size RPG dice, specifically a 6cm or larger D4?

I’ve found a few shops that sell large D6s and large D10 "Cthulhu" dice, but none that sell large D4s…