Absolutely positively TOTALLY against the idea in every way!!
It just becomes a popularity game and is sooooooooooo Jnr High....
I mean, seriously, the well known will get acknowledged while others get ignored....and Im not saying this because I am sensitive or am afraid I wont get one, cos to be honest, I dont care, and dont want one...I am saying this as a youth worker who knows the ramifications of such things and the way it can inadvertantly hurt or offend people. Anything which singles out individuals over others potentially causes jealousy, self esteem issues, and negativity on the larger scale of things.
So, ahh, yeah....not wanting to offend anyone....but....no - not a good idea at all.