I've thought about this a lot. If I'm willing to buy a 60 dollar toy, why not shop around and look for a cheap vacuum with the right hose size. Since it's for your cock, you don't need something powerful and expensive. I've even thought about just buying tubes and adapting hoses to a cheap vacuum.
When I was a kid, I used to fuck a canister vacuum and if I angled my cock a certain way, it would make a flapping that gave a heavy vibrating. Those were some of my most intense orgasms.
Yummy! Now everyone should go on my page and watch my video of me using the vacuum cleaner to milk my dick until I orgasm and squirt my sperm inside the tube.
For me I find that I have to manipulate the wand just right to cause the right vibration. The wand on my vacuum cleaner is not clear. I often get desperate and try it out, but sometimes it just doesn't work!!! I'm glad to see others doing this too.