Regular Weapons:
The bow used by the Archer Ishtar is the detached prow of Maanna, the Boat of Heaven. This time, she transformed the oar piece into a scooter she uses as her means of transportation.
Appearance-wise, it looks like any modern scooter, but, naturally, its capabilities are goddess-class. It can fly, it can warp.
FGO Materials (Summer Ishtar)