The classic: the plastic chair.
Chair and a table.
Plant, bucket, and folding chair.
Broken upside-down chair.
Cafe table and chairs (perhaps my favorite).
Recycling containers (you don't need them since the city stopped picking up recycling).
Some sort of wooden structure.
Buckets and a 2 x 4.
Little kid chairs.
Chairs neatly spaced.
Pieces of wood.
Or, you could just wait for the snow to melt.
This guy might be waiting until May.
This guy has the best idea... a tiny car!