I want a lightweight, portable, tripod-like stand for a Canon 420ex shoe-mount flash unit. I want to use it as a slave to my 5503ex. I don't seem to find what I'm looking for in my online shopping when I use "flash stand" or "light stand" in my searches. I've seen "light stands" with a screw top but my 420ex doesn't have a screw mount. I've seen umbrella light stands, but that's not what I want either. I'm sure I'm missing something quite simple and obvious. Can anyone point me in the right direction or give the correct name for the item I'm looking for?