You need to do a little more than j,j,j,jiggle pea flowers to pollinate them. They (and most other legumes) have evolved a mechanism that requires the keel (the lower lip) of the flower to be depressed (this would of course be done by a visiting insect outdoors) to force the stigma through the anthers to effect pollination. As Hugh pointed out when I mentioned this, concerning broad beans, it could be a very laborious process trying to replicate this action by hand! Hopefully a 'half-pint' pea doesn't have a lot of flowers.
Who is Arkwright?