I think if you all take a look at the cartbike, you will get some great ideas. now this is not a trailer, but more of a tadpole bike. But, you can take the exact same shopping cart design, turn it around so it faces backward, drill and mount an "S" shaped pipe from the bottom of the cart that rises to the seatpost, then use tightwad's "chunk of car tire" hitch with a big bolt that goes throught the end of the "S" pipe which has been flattened vertically. you can make this entire trailer with NO welding. beautiful!

http://www.bicyclelaneindustries.com/bli/cartbike/

regards,
flashdancejay

I'd say if you want a foolproof thing without a lot of hassle, get a Burley either new or used. Since a large basset hound is about the size of a kid, get one for carrying kids.

I'm all for building trailers but when all's said and done, most of us don't have the time.

The Burley Solo works great for me and is still a manageable size. I tried a one-wheeled Yakima trailer but it was too tippy for the pooch. The kid trailer is great since it confines him a bit more and makes him less likely to try to jump out. He's tethered in, anyway.