Pumping before the gym

I have never pumped but interested in giving it a go. Just wondering where the best place to purchase a pump from or any home made stuff

I bought mine at different times. My iso stage2 cylinder is my favorite because I can pump cock and balls at same time
 
I pump at night. The stares at gym or work were too much to handle. I actually wear boxer briefs over boxers to reduce my VDL. On weekends, I get a lot of stares, but who cares when I don't know those people. :)