Looking for some programs or advice.

[Tea Tree]

I'm sorry for the bump but I'm more alert and awake and I can word out what i'm looking for. I'm trying to find a program that I can sprite any size of icon in, and then save my finished work to a sprite sheet or atleast make it so I can make a sprite sheet and then add it on. The reason being is I need to icon large statues and buildings and the like, any programs coming to mind? All help and suggestions are much appreciated.
And a quick off topic, anyone have a cloverfield monster icon on hand that you could send me?