I created and sold Stickonspy (http://stickonspy.com) just after mid last year. The initial month I launched it did pretty well as the NSA news was still a pretty big deal. All in all it's made me < £1k but it's been great fun to build and ship a product from scratch. I've shipped to around 12 countries too which is cool. I also spent no money on marketing.
I'd say my time - which was evenings after work - investment was around 3-4 days initially and then fulfilling orders is simply writing a customers address and posting the stickers - which if the demand was bigger I'd probably outsource.
It's been great. I've learnt a shit tonne & the conversations it started has given me an idea for a similar product which I'll be focusing on very soon!
I'd say my time - which was evenings after work - investment was around 3-4 days initially and then fulfilling orders is simply writing a customers address and posting the stickers - which if the demand was bigger I'd probably outsource.
It's been great. I've learnt a shit tonne & the conversations it started has given me an idea for a similar product which I'll be focusing on very soon!