I’ve been making a few sprite sheets and uploaded them at The Spriters Resource, a website where you can upload and submit sprite sheets of various things in different games for different systems consoles.
I was uploading a couple of sprites sheets of playing cards from Bicycle Solitaire and Bicycle Poker in the PC/Computer section the other day because nobody ever made any sprite sheets of those. I already submitted them but they haven’t been improved yet, hopefully they’ll come up once my sprite sheets are fully approved.
I also can’t wait for the Steam Summer Sale to begin someday so that I can buy new games and add them to my Steam library.