I do something kinda similar to Weabols sometimes, except without the audio interactions stuff. I cram a full sized bullet vibrator into a tight fitting cock ring then put that cock ring right on that sensitive spot below the head. Totally hands free other than hitting buttons to change speeds on the vibe. If you just leave it running it seems like you are never going to reach an orgasm from it but it just VEEEERRY slowly creeps up on you. In the couple minutes leading up to orgasm I am usually wiggling my feet around uncontrollably it gets so intense.
Tying up your junk can always be fun too. One fun way I found (I think from a tease cant remember): If you use a shoelace and fold it in two (so you essentially have one long double-lace) then put both of the ends of those laces through the "loop" where you folded it, then tighten that around your balls+cock. Position the part where the loose laces come out right in the middle of the bottom of your sack, then you can pull those laces up separating your balls from each other, then split those laces to each side and wrap around your cock.
Ice can be pretty intense to play with too. Get yourself lubed up (with water based lube) and close to the edge then backoff a bit and use ice cubes to stroke yourself until the ice has fully melted. On a related note you can dip your cock+balls in ice water after getting close to the edge to get soft faster again.
If you are into pain jerking off with icy-hot is super intense too. It doesn't feel like much at first but then it starts to really burn as you keep going. It's not as bad as it sounds actually though. It's a much more bearable pain than stuff like ball slaps IMO, just different and longer lasting.
There are always fleshlights or pocket pussies too. Pretty self explanatory. You can set one up them up against something to move your hips to fuck it too, which is a different sensation than just jerking with one.
If you haven't heard of it this site has a bunch of ideas too, most of which only require lube or some household items:
http://www.jackinworld.com/techniques/j ... collection
And yes....I've given way too much thought to ways of jerking off.
