You will come up with the most common images.
I did this. Some of the states have multiple choices and some really cool designs. A few even have a place for the photograph of the users. The most common type here in Pennsylvania is a green background with the "Access" logo.
I'm actually surprised that more states don't sign crony capitalism deals with banks to use the more common MasterCard, Visa, Discover or American Express logos to disguise the cards better
MasterCard etc. are international brands, and very jealous of protecting their reputation. I strongly suspect that they DON’T want their logo (often associated with wealth and prosperity) to be sullied with the stigma of EBT.