what i do is that i cut the shrink wrap to twice or 2.5 times the size of the remote (to cover everything)...seal all the sides using the electric plastic sealer (which i also bought from RAFF packaging in alabang for Php600++)...then use a hair dryer/blower to shrink to plastic wrap and take the shape of the remote...voila...of course if there's a need to replace the betteries, you have to "destroy" the plastic wrap, replace the batteries and do the wrapping all over again...thanks!
thanks to nirvblakr for teaching me this...