Jizo
I recently rode my bike west down Waseda Dori–all the way down Waseda Dori to the end, about 15 km each way. Along the way I visited several shrines and temples. The one with the above jizo is called Saishoji (最勝寺) and is near the Nakai Station. These jizo sported orange bibs and caps instead of the normal red.
A little farther down (and off) Waseda Dori is Arai Yakushi (新井薬師) were I spotted these little jizo.