setplayershape
 

setplayershape width,height,type
setplayershape pixelwidth,pixelheight,type

This would be very usefull for servers wishing to change the size of the player. Or even just for making the player grow, shrink, or dissapear (to built in arrows, projectiles and such). It could also be used for easily making jump or dodge tactics aswell (which is the very reason I'm posting this).

just custom script everything =.=

Seems open to abuse.

maybe not if it were serverside.

I don't like most people ideas but I really like this one...

I don't know what the "type" is supposed to do, but apart from that it could be usefull.
I was thinking of it before to be used on map levels (for the overworld) where everything is viewed from a huge height. Then you would run around with a smaller player, but you need to change it that it wouldn't be blocking the default 2x2 tiles.
So there are many uses for this command, but we have just got to think about how easy it could be abused.

I just put the type in there cause setshape has it. I guess if more shapes are ever added some server may want circle characters or something... I dunno