Make your own journaling cards with washi tape (and pick up your washi from Bump of Knowledge @ Etsy - https://www.etsy.com/shop/BumpOfKnowledge):
I make Washi tape sample cards out of recycled rigid plastic packaging cut to ATC size. I round the corners, otherwise they are very sharp. I can even punch holes to hold paper fasteners as in the sample with owls. These samples slide into the trading card page perfectly.