I took the chair bit apart and now don't know where the plastic strips go.

the stem does not come out but u can find @office chir parts.com

At the LujoLiving site they have bean bag chairs that are designed to withstand all sorts of weather conditions. They are not cheap chairs but they do look pretty slick. http://www.lujoliving.com/outdoor-beanbags/ The chillaxx site also has an outdoor range; http://www.chillaxx.co.uk/pages/outdoor-bean-bags

Have you tried the Etsy site? They have some really nice stuff - not the cheapest that's for sure, but definitely a bit different. This link shows a pink paisley design that I thought was gorgeous.

Wooden high chairs are often more sturdy than plastic ones. They also don't break as easily. It's really hard for even a very destructive child to do much damage to a thick-legged wooden high chair.
I also think wooden high chairs just look so much nicer than the plastic ones and you don't' stick out against the decor of your kitchen.

I think it's great that you want to build your son his own personal highchair. I took the liberty of finding you a very reputable tutorial that should guide you through this process. Enjoy and good luck!

http://ana-white.com/2010/10/highchair.html

I would be more than happy to help. When buying a classic high chair it is important to focus on the basics. Is the chair comfortable? Most high chairs come with a cushioned seat. Is it durable? Since most are made from wood/plastic it will most likely be durable. What kind of portability will this high chair offer? Some high chairs are designed to fold up for easy storage. How easy is it to clean? Most classic high chairs have vinyl seats allowing ease when it comes time to clean up. Last and most important, is it safe?

hah im sorry to say this but it is a case of poor design to find the battery you must strip the computer down a bit the battery is located under the keyboard and palm rest on the mother board. the battery is flat and is in a round socket it shouldn't be hard to spot it once your there, here's an image of what it should look like http://blackman.amicofigo.com/gallery/index.php/Arduino/i2c-Items/rtc-battery .

Yes you can get parts for it.The gears tend to strip the teeth.

HI, mine started doing the shuddering. It would roll OK, but shudder when the massage part kicked in. I took it apart. There is a plastic gear on the shaft at the bottom of the massage motor. It has a broken tooth. I called the support number for human touch: (800) 355-2762 and they only sell all the mechanical guts as a package for $125.00. I'm still looking for just the gear but am having no luck.