They're easily made from an old aluminum crutch, which are cheaply found in thrift stores.

Check out this .pdf of instructions....


Attachments
2010_3_21 - Crutch.pdf (1.03 MB, 51 downloads)

Last edited by Kendel_McCarley; 08/24/15 09:20 AM. Reason: wrong file

N18506 C-150L overhaul project
N5275G C-310A flying ecological disaster
N37BZ fast wrong way 150
N383FM kerosene burning insanity
N55HL you bought a what?