PSA/quiz for Gaming Entrepreneurs

[ZeroTwentythree]

PSA/quiz for Gaming Entrepreneurs. A friend just brought over a pile of promotional loot for me from Adepticon. There's a major difference between the four on the left and the four on the right. Can you guess what it is?

[fred]

Is it that the 4 on the left have labels, so you know who makes them?

Which is kind of important for promo items.

[ZeroTwentythree]

Yes, good answer. Even if I had been there, I might not remember where everything came from. Even worse, in my case, since i have recieved all of this second hand. That *should* be a great thing for these companies, as it means their marketing is reaching beyond actual attendees. (And I, in turn, will be passing se of these on to even more people...)

The four on the left each used a different way to identify and promote their product & brand with what was presumably only a small cost & effort.