yeah you should totally do that it would give you a bunch of money and i know i would personally buy a couple!
maybe pokemon like eevee, dratini, celebi, delcatty, ponyta, seel you know cute things or maybe like ledandary pokemon such as raikou, entei and suicune all together and then the bird trio ect. Or maybe type posters with maybe a bunch of pokemon from the same type together.