I've never actually carved a pumpkin before so I thought I'd give it a go. Better late than never. I wasn't going to put it on here hence why the steps are a bit rubbish.
Step 1: Stencil
I printed off the Iron Man face and taped it to the pumpkin. I used a nail to punch holes around the outline of the pumpkin
Once that was done I used a knife to take off the skin
Step 2: Carve!
After the initial skin was off its just a matter carving into the pumpkin to the depth that'll give the best glow. I used a sharp kitchen knife because that's all I had. A Stanley knife blade is good for scraping off extra layers