More of the Halloween stuff I worked on this past year has made it to Party City's shelves. I did the artwork for four 'Party Suit' aka 'Morph' masks. They're stretchy over the head masks, sort of like stockings. With some accessories, such as gloves and printed t-shirts with faux muscles (I did some of those as well) it could make for an effective and relatively inexpensive costume. Just be careful where you walk! (It's not that easy to see out of these things).
The art for the Hulk mask was painted entirely in Photoshop, with some very small and low res style guide images as my reference. I also had to paint them flattened out, anticipating where certain parts of the face would fall once it was actually worn and wrapped around a head. The only template I was given was the main outline shape - I had to determine on my own where the mouth, eyes, nose, etc would fall once actually worn. I winged it, but for the most part, I think it works.
The four characters I worked on were The Hulk, Captain America, Iron Man and Spider-Man, the latter two created in Illustrator.