Best/easy/cheap pedal for bass

[markeebee]

A colleague of mine at work is a bass player, into prog rock (he's Dutch, it's not his fault).  I mentioned that I built pedals and stuff and he seemed quite interested. 

So, as he's done me a few work favours recently, I'd like to build him a pedal as a gift. 

Any suggestions for a quick, easy, cheap but mind-alteringly impressive pedal for a bass botherer?

[MikeH]

Orange squeezer or a Ross Comp sounds pretty good on bass...

Also Bazz Fuss / Big Muff if he's likes fuzz.

[Nasse]

I made a Russian GT308 bass booster for a 18 year old bass player, but dunno if he liked it. I used AC128

[kungpow79]

bazz fuss is cheap and easy.  Put it in a 1590A!

[space_ryerson]

My wife is a bass player, and I've been having a look at the Bazz Fuss on the breadboard for her. So far, the combo that works the best on the bass is two 2N5089's in home made darlington config, 1N914 for the diode, .001uf input cap, and .1uf on the output cap. She's looking for something kind of 'grind-ey'. I tried the thickness control on the home-wrecker site, as well as the pickup simulator, different input and output caps, a mpsa13, different diodes, and this seems to be the best solution to her query so far. I'm about to perf it up, and box it up.

[oldrocker]

I played bass in a prog rock band.  I built an Orange Squeezer for my guitar.  Just for fun I plugged my bass into my OS.  My bass sounded so tight going through it.  I won't play bass without it.  I just pretty much leave it on all the time.  Some have modded it for bass. But I haven't needed to.  It sounds great as is IMO.