I have made the DJ knows dicks packer and it worked great! It lasted me like five months (even if you tend to leave it on the floor and then step on it. I've done that alot. FEELS HORRIBLE EW) Um, not the most real feeling/looking thing ever.. (Kinda looks like some alien slug being.. fun to squish, at least. :x ) If you do make this one make sure you use NON LUBRICATED condoms! Trojan was the only brand I found that was unlubricated.
But! For the same price you can go to early 2 bed's website and look at their packers. I bought mine for 16 USD after shipping and they have a coupon which you can find with google. IT WORKS SO AWESOMELYYY @w@ I've had it for a few weeks, and I even made a STP out of it successfully! <<< Shows how.
SO yeah. Either way is great, but buying the actual packer from early 2 bed will last longer, looks more real, and is easier to keep clean... The DJ knows dicks one gets icky from sweating, and the condoms may pop if you play too rough with it. Never happened to me, and as I said, I stepped on mine quite often.