Tic Tac Toe Ideas - user input wanted! Please leave some comments!

Sounds

I want to add some sounds to the end of the game in Tac Tac Toe. Like applause, or a fanfare, or something like that if you win, and maybe an "awww" type of sound if you lose, and I have no idea what to put if you tie.

I looked briefly for some free sound bytes, but I didn't find much yet. Do you have a suggestion of sites where I can get some good sounds for free? (and by free, I mean legally free... not stealing sounds that are licensed by someone else.) Anyone willing to create some good sounds for me?

If I get enough good ones I can put a few different sounds for each scenario, so that it isn't the same sound every time you win or lose. I can have it randomly choose a sound when it's time to play the sound.

Images

Also, I'm thinking about giving the user the option to change colors of the X and O, and maybe creating some other themed items for players to use other than the traditional X and O. Any ideas for themes? I know there are existing games on the Play Store with puppies, and a couple other things, so I wouldn't really want to copy any of those ideas. Again, I would need images that are free to use, or images created by myself or that you (my users) have created and would be willing to allow me to use for free.

I could also do themes based on holidays... those would mostly be easy to do. Hearts and such for v-day, pumpkins and creepy things for Halloween, Santa and trees for Christmas, Turkeys and pies for Thanksgiving, flags and fireworks for Independence Day... the list goes on.

Game Play

I know there's not a lot to change about game play in Tic Tac Toe, but I could make an option for what player plays first - player 1, player 2, or random like it is now. Making it so that player 2 is always first would increase the difficulty a bit, and vice versa.

I've also seen games with larger game boards - is that something that would interest people? I'm not sure about the strategy for the larger boards, so it may be a while before I have a competent computer player, but I am always up for a programming challenge. Until then, I could make it just 2-player for the larger boards.

Other?

Any other ideas? I'm always open to suggestions. If you have anything, leave it in the comments or drop a line to my inbox.