After almost 30 years of masturbating, I was in need of something new instead of the same old stroking method so sites like this have been very helpful. The technique I've been using lately is very familiar since it's how I fondle my wife during foreplay or when I get her off without penetration.
I sit in a chair or lay on the bed with my legs spread; this allows my flaccid cock and balls to hand low between my legs. Then I use a hand to cup my cock and balls, pushing them (pointed down) flat against my body so my cock head is pointed toward my butt. My middle finger runs the length of my penis; my scrotum and balls mound up on either side of the shaft. I slide the middle finger up & down along the shaft, like I do my wife's clit. The fingers on either side of the middle finger massage the mounds of flesh and balls, like my wife's swollen labia. With the feel of my pubic hair, it's not hard to imagine I'm fingering my wife's pussy and begin enjoying the sensations I imagine she feels when I do this to her. I keep my had flat and rub in a circular motion as my cock stiffens, but I keep it pressed firmly against my body -- as it extends, my cock head reaches my butt hole which send chills up my spine (it's not long enough to enter or anything, but the sensitive head rubbing against the hole is an awesome feeling).
I use one hand to play with my nipples as I keep rubbing my cock and balls with the other, either in circular patterns or up and down, as 'my package' is pressed against my body. If I lift my legs, then my butt cheeks separate exposing my asshole. I alternate between pinching my nipples and using a flat hand to spank my hole, like my wife does to her clit during intercourse. It's an amazing sensation. Because I'm not gripping the shaft and pumping up and down, it takes longer -- but I'm not in a hurry and shot quite a load this way. I like to think that this practice makes my hands more skilled thus making me a better lover for my wife.