Marie Claire Idées - Ladder with shelves for display. This is a retail display, but, with removable shelves, it could be portable enough to work for craft shows too. What an awesome DIY idea - paint a nude A-frame shelf a bright color for a unique pop!
Short on cabinet space? Attach a painted pegboard (available at hardware stores) to the wall, then loop in metal hooks for a display that'll keep your most-used tools neatly in one place. Click through for more ways to organize your whole house.