I use a two inch long piece of florists wire (or any thin wire, like you can unwind from electrical cable). With tweezers or better still, long nosed pliers, turn around a loop in one end into a tiny almost circle, so it looks a bit like a letter p. Then bend the loop to a right angle to the rest of the wire, so you've got like a tiny ladle with a hole in it. The other end I just loop around so it makes a kind of handle.
Get a piece of polythene, that slightly soft waxy feeling plastic; I use bottle tops from plastic milk cartons (you get a new one every day...) Put a drop of glue in it; it will take a very long time to dry on polythene.
Then dip your tiny loop into the glue, and you'll pick up a small blob in the loop which can then be transferred to your item. It's a bit like a very small version of those blow bubble wands that kids have.
Does that make sense, or do you need a drawing? I realise it's not very easy to describe.
When it gets all glued up, just chuck it and make a new one. The bottle caps, you can pick the glue out of when it's dry.
