Have you ever wanted to use a batpack and a jetpack at the same time?
how about the ability to combine a pair of quantum boots with an electric jetpack, to create a jetpack you wear on your feet
they would function similarly to a jetpack, but with the power supply of the quantum boots giveing it a slight increase in flight time
naturally, rocket boots would completely replace the jumping functionality of the normal quantum boots
suggested recipie:
IJI
RBR
I = iridum
J = electric jetpack
R = refined iron
B = quantum boots