http://brantsteele.net/hungergames/This is what's being used by all the forumers right now to make those Hunger Games forum games. You can use the default characters, characters from other shows, or your own custom ones.
It will take you a very, very long time if you're using custom ones. You have to get images, then upload them, then make them black and white.
However, if you DO want to make such effort, go on ahead!
Post the links of simulations you've done here. To save a season, click "Save" at the left of the screen, then copy the link and paste it here.
Here's one I did using a bunch of video game characters. One series & 1 pair of characters per district. Not gonna spoil a thing for you guys.
quickedit: well, except the matchups
