There's no real number for these just as many as I can think of. I'll try to do 10 every time Feel free to write a story off any of these as long as you give me the link to it. The first one's Katara.Read & Review.
How to Annoy Katara
1. Replace all her water sources with pudding and laugh at her when she tries to bend.
2. Ask her if she kept her mother's necklace because she wants to marry Master Pakku.
3.Dump a bucket of ice cold water on her head when she's not looking and blame it on Momo.
4.give her a cell phone and video tape her freaking out at the random ringing noises.
5. find her a job as a clown for a week and pay her with an IOU slip.
6.Make her play spin the bottle with Jet and his Freedom Fighters.
7. Sing the barney song to her at twelve midnight.
8.Take Sokka's pants she just finished sowing and rip 20 large holes in them.
9. unbraid her hair and braid it again like Meng's while she's asleep.
10.Show her all the fanfiction stories that pair her up with Jet, Master Pakku, Sokka, Momo and so on.
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A/N: I know there's not a story that pairs Katara with Momo. If you've heard of one could you tell me. That might be really fun to read.