First I want to thank fubar.gr for the inspiration. This thread is here to show people the worst and most dangerous pre-made connections you come across. Hopefully it will alert anyone who reads it of the hidden or just under the surface connections made to save money. or by sheer incompetence. If anyone has their own pics please contribute!
First we'll start with fubar.gr's example of a dangerous jumper cable -
Here's my contribution. First we have a clip lead and banana plug from China. I bought some banana test leads to use with power supplies. However they were not conducting. The banana plug connection was not visible unless you cut away all the plastic. That solder joint just snapped off with little force.
The clip lead connection wasn't as hard to find, but as you can see, the copper looks like something that came out of the scrap yard, all corroded. Bad stuff.
Next an example of a tiny antenna that came with a USB dongle. As you can see, they didn't care that the ground could short to the center conductor -