I've always thought that the "flags" in the CTF games never actually resembled a flag. So... check this link out: http://www.origionstudios.com/ai/nexuiz/models/flags
I want the flags to change, however for that to happen I think the community and devs might want to accept them first. Comments are welcome, all flags, are as stated, a concept for now. Don't want to spend on details until some conclusion has been reached.
None of these have been textured either (except for tZork's), as they all are just concepts.