1) automatic AVATAR CHANGER allowing mutliple avatars that get rotated. Allow users to buy the ability to have a 2nd, 3rd, 4th, or 5th avatar to display in the normal 200x200 avatar spot. Basically, if they had more than 1 avatar, they would automatically rotate allowing a player to use more than 1. There may be a way to code this is a way it wouldn't have a performance impact and could show a different avatar each click/refresh of the page. Each refresh would go to a different URL to get the photo perhaps. If this isn't easily achievable, then the players avatar could rotate less often, perhaps on each log on, or at the same time their bank resets.
Ideas 2 and 3 are kinda mutually exclusive.. implementing one would make the other not make much sense due to room on the page.
2) a player AVATAR BANNER. A player could make a banner that is 600 or 500 pixels wide and 100 or 80 tall. It would still be a graphic, but players could add text to make a nice advertisement for buff prices or something. Lots of creative users, I'm sure it would get used by some, and as an upgrade would help sink fsp or gold.
3) add a mini-Avatar. If the banner seems too big, just allow a second avatar for players, with the dimensions of 100x100 pixels. Would look good on the right of the player name above their bio.
Also, you could extend these ideas as a guild upgrade too, to allow a guild to have a banner or have an avatar changer, but I'd rather see it for players first.
And here are some graphics to demonstrate how the sizing would fit on the page.
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