CLAMPS

try your dollar store. they often have 'em in the tool section. usually not to sturdy but super for planes and THEY"RE A DOLLAR[sm=idea.gif] at that price get 10 or so. the pistol grip kind are cool but I'd hate to pay home depot's prices [:@]
OOPS just saw your location
paint stirring sticks are handy for sanding and as wood for building too. stick the sand paper to it with any old kinda glue they are kinda handy.