This is what I ended up getting, the one with the m&ms is the size I got the lids do not have a gasket but seal pretty tight as I can't squeeze air out. I will do a water test to be sure but I have a feeling these will do fine.
http://www.rubbermaid.com/Category/P...od_ID=RP091887
My next question is do all 5 packs usually are wrapped in plastic if so could I leave one end of said plastic open and put the beads on or near it?