Phineas and Ferb, P&F Illuminator Wand,
These were given out after dark at the Disneyland parks. They glowed and spun around and suchlike.
This one is not working, but it probably just needs a new battery. There is a little battery slot, so the batteries can be replaced.
From the personal collection of Swampy Marsh, co-creator of the Phineas and Ferb TV show.
Signed by Swampy Marsh! (see photo).
Portion of proceeds to benefit A Walk On Water charity!