Looks like these, but I doubt you'd need to spend $100 to find or make something similar.
More likely these, but they are more expensive. Probably worth it if you're near that level.
Edit2: Better yet, make them yourself with PVC from homedepot.
If you're going to buy a dip station/set of parallel bars, the most important thing is to ensure that they're tall (high) enough to accommodate your height. This is to ensure that, for dips or using them for rows, you'll have enough range of motion (ROM). If you'll have to bend your legs at the knee to get things done, that's fine, but definitely be sure it's tall enough for you. Also be sure to look at how much weight it can safely support.
I use a Lebert Equalizer, which is a dip station/parallel bar set that comes in two pieces. I'm 5'6" tall, so the bars are just tall enough for me get a good enough ROM for my dips with my knees bent.
I think that this piece of equipment is great for me, as I can do my weighted dips with it and I can also use it for rows. The fact that it comes in two pieces is also pretty handy, and it's portable if I want to take it outside on a nice day. I could also use them as a set of parallel bars if I want to do any exercises that require parallel bars in the future.