My dice bag is awesome. I made it myself, and it has served me rather well for several years and shows no sign of stopping. My previous bag, made by an old friend, was great, but ultimately became too small. I had to expand.
When my dice collection started to grow past a couple of basic polyhedral sets to something that has developed into ungodly ("Well, I've got 15 d10, may as well even it out for each size, that would be good for my odds...", "Oh, that's so pretty! I need it!", "Shit, now my counts are uneven, time to sort that out again..." Wash. Rinse. Repeat.) I knew that I must take matters into my own hands.
And what better way to store dice, than in a giant die? I had seen die-shaped dice bags before online, and beyond knowing that such a thing existed, I didn't use any other reference than an actual d10 (I like their shape best out of all the polyhedrals).