You don't even need a Q-tip!!
Just break off a freshly opened blossom from a cluster, and gently pull the petals off (or just sort of pull them back out of the way). Then brush the pistils and stamen from that blossom lightly into up to a dozen or so blossoms (don't bother pollinating more than 1-2 blossoms per "cluster"- or you'll have to thin them back off anyway!).
When you reach a dozen or so "consummations", drop that bloom and grab another (or you can pick a few dozen off at the start- taking one or two out of each cluster- see my comment about thinning above; keep them shaded while you're working, and they'll hold up fine for a couple hours- plenty for your purposes)
It really isn't as much trouble as it sounds unless you have many trees, or standard sized trees.
Summerthyme (thankful for the neighbor's bee hives!)