"Hang-glide pogo stick" (not the parasol idea): rather
than
standing on the pogo stick, you are suspended under it
from an elastic cable with a bungee harness. The stick or
rather bow, curves to the ground behind - and over and
under you.
The "stick" would be more of a "bow" - So maybe
it
should be called BowGo.
Once you are high up in the air, by holding another cable
connected close to the Sbogo's ground contact, you can
yank it into the air and send it in any direction, or just
enjoy bouncing high in one place.
An improvement would be to have a double bow, so that
you could "jump walk" with a single bow in each hand.
Other improvements:
a. Devices for keeping the bow at hand: Your harness is
connected to the bow with an O ring, or connected to a
"bowstring" to keep you close.
b. Devices for allowing this to be extremely lightweight:
Make the bow itself be the spring. Or have the bow with
a path along its back leading an elastic cable, so that it's
structure holds.