You know, since they are letting us buy more than one, i HIGHLY DOUBT that they are using any other method of counting other than the sheer number of shirts sold. So, given that, the other option would be to buy 100k credits worth of ned shirts....hmmm...... lets see, 2500 credits worth of shirts per mule, make 50 mules, carry the one......
hmm, stuffing the ballot box? shady voting tactics? It worked for dumb ol' W, it could surely work for ned.