Yes, I found that I can easily obtain needles and syringes from a place like Farm and Fleet with no questions asked. You can get some nice large syringes since they are meant for shooting up livestock.

For <$10 I bought five 18g luer lock needles with 5ml syringes. Blunt tip needles can be found in inkjet cartridge refill fits at office supply stores.
I've heard that you can get syringes from Walgreens but you'll get hassled to sign forms. You'll get hassled even more when you ask for an 18g needle since they expect you're buying them for insulin which is upwards of a 30g needle, while 18g is close to the size of blood donation needles. Ie. They will think you are junkie!
As mentioned before, try to get a 18g esp. if you use wow since the VG has a higher viscosity like syrup. 20g is generally ok for high PG mixes, ie. premiums, but just get a 18g if you can.