ALS is as you know a lot worse than HSP, however we are pleased that a school in Klosterneuburg, Austria organized a HSP challenge.
it still not a simple Imitation of the ALS idea(cold water) but potatoes. Read yourself.
Here you can watch a little film which shows the teacher suffering HSP.
Exciting News (October 3rd 11 o'clock>>>>> Donations >6000.-- € !!!! Unbelievable .... This is the film from the potatoe run. Photos here