I am still experimenting and learning the print on demand business. Since i am limited to only 10 shirts on Merch by Amazon right now, that means I have to delete some and replace them with others to, hopefully, get noticed.
One technique I am still learning is finding profitable printable niches. Here are a couple new niche designs I like and just added. Click the images to see the actual listings.
The mom shirt is targeted at the upcoming Mother's Day holiday but could be a year round seller.
The bird watching shirt is a niche design aimed at the birders out there. Bird watching seems to be a good selling niche that is not over saturated - at least for now. As summer comes on that might change so I hope to be in early.
I also made both of these designs available on a variety of products over on Teespring. I put them on cell phone covers, totes, towels, hoodies, posters, mugs and other print on demand items.