Multicolored School Bus/Party Bus In NYC

I am trying to plan a birthday party for my friend.

A few weeks ago I was in Manhattan and aw a multicolored school bus that was a party bus. People could sit on top and it may have been part of a bar crawl...I saw it in midtown...does anyone know the name of the company or how to book that bus?? I couldn`t get close enough to see the name...

Any help would be greatly appreciated. Thanks!