Hey Ben, just a thought. I just moved to Thailand a month ago. I never realised it but journals (and stationery) are huge business in Thailand. Being Southeast Asia, anything with a "cute" angle seems to sell best. Then there are the stickers which people use to customise those journals -- might be a natural product range if your initial experiments work out and you're thinking of diversifying.

BTW, it's coming up to the Lunar New Year in the Sinosphere. I'm guessing anything "tiger year"-related is trending right now - in particular, calendars and journals.