Asian-inspired ceramic garden stools are one of the most timeless choices for adding impromptu seating for any part of the house. The most popular style is chinoiserie which depicts botanical shapes and Asian landscapes in shades of blue and white.
The Gardener's Tool Seat is a complete package of portable seating and tool storage. The stool, made of steel and nylon, can be used with the tool bag underneath, or the tool bag can be separated from it via hook-and-loop fasteners. It comes in hunter green and kelly green, sold by UncommonGoods.
A simple enough foyer takes on zippy personality with a pair of zebra-stripe stools. The white rug is a nice complement nearby, a graphic pattern to match the stools' punch but in a single color so as not to be too busy.