This pumpkin would use turnips to make bull horns. I think it would be pretty cool.
I tried to think of a bunch of different ideas for other vegetables and their uses. My mind kept fixating on using straw to create a "bad hairplugs" pumpkin in homage to all of those dudes who have a ring of hair plugs on the front of their head.
When I am not carving pumpkins, I run a bulletproof vest company. BulletSafe Bulletproof Vests are the value leader in body armor. We are very popular with people like armored car operators and ATM repairmen.