This 3D printed base will fit any 1" pole (a broomstick works great, but so would an extendable pole, as long as the diameter is 1" or less)

You will need a compact power bank for it to fit together properly, I've confirmed both of these fit:

https://www.amazon.com/T-CORE-Charging-PD20000M-Ul...

https://www.amazon.com/Miady-5000mAh-Portable-Char...

The 10,000mah power bank will last ~12 hours and the 5,000mah will get you ~6