This blog shows aesthetically pleasing projects starting from anything that you could find in a recycling bin: can, plywood, plastic bottle, The possibilities are endless.
I'll do my best to show my own projects or creations from others I really like.
There are a lot of front mount-bike seats on the market. Most are available on line but you can not try them on your own bike. I found this one on Amazon that I like but was concerned about the geometry of my own bike to fit this device. This front mount seat was $99 and is not available anymore on amazon.
I then decided to make my own using only PVC pipes and zip ties.
The main pipe is 2 inches PVC pipe that I drilled at each extremities to fit the seat post and on the other side where the stem is. I used hole saw attached to a drill to make clean holes all the way through the pipe.
On the seat post
On the stem
For the passenger feet, I had to design a T-Shaped structure made of 1 inch PVC pipes, I happened to have 2 holes in the frame where you can attach a bottle holder, instead I attach the foot rest pipes, with an extra zip tie to help the screws that are a bit further down:
I attached an old saddle to the main pipe by drilling little holes and using zip ties:
At the end, the PVC pipe is very sturdy and does not care about a 40 pounds kid seating on it. I did not put any handle for the passenger, I think it's not safe in case of a fall. it's too close to the chest.
Also, one downside with my version: it's not as good looking and It's not quick release, but I do not care.
The good side: it cost almost nothing to make it: $5 if you have to buy the pipes... and I feel very safe to ride with. But even if it looks safe, if you try your own version, I'm, in any case, NOT (thanks geembob) responsible for any injury that might occur...