A handful of apparel items I've edited into 32x32 sprites.

apparel_sheet.png has 0px padding.

apparel_32x32.zip contains the sprites as individual files.

Original CC0 images @ OpenClipArt

https://openclipart.org/detail/14831/adventurer-hat

https://openclipart.org/detail/20442/deep-diver

https://openclipart.org/detail/20667/gas-mask

https://openclipart.org/detail/67567/hockey-mask

https://openclipart.org/detail/71029/guy-fawkes-mask-3d

https://openclipart.org/detail/76501/arm-watch

https://openclipart.org/detail/81085/hard-hat

https://openclipart.org/detail/157501/lone-ranger-style-mask

https://openclipart.org/detail/169296/pocket-watch

https://openclipart.org/detail/176790/3d-glasses

https://openclipart.org/detail/236680/red-ribbon

https://openclipart.org/detail/276028/fez-hat

https://openclipart.org/detail/300050/diving-glasses

https://openclipart.org/detail/307981/yellow-hard-hat

https://openclipart.org/detail/312561/stop-watch

https://openclipart.org/detail/332532/tengu-mask