Cheap detune effect pedal
 

I was messing around with my DigiTech RP500 multieffects thing today, and I couldn't find a tone I was happy with for a certain song. Then I found a setting called "Detune", and on -6, it compliments my sound so well that I want to make it a fundamental part of my basic tone. Trouble is, I can only use one mod effect at a time with this thing...

Boss' PS-5 has a Detune effect like I want, but it's also got a bunch of other crap I don't care about, and it's $179 dollars. So is there a cheaper pedal that just does the Detune effect?

EHX's Holy Stain is a multi-effect that has Pitchshift mode that does -3, +3 tones I think. It's $100.

That awesome DOD Whammy Pedal usually runs for $200 but one time I saw it on sale for an amazing $100! They're often on ebay, used, for around $150. They're great.. I think the guy from melt banana uses it often, and it definitely "detunes"...

I got a digitech RP3 which has the same effect on it. You can probably pick one of those up really cheap on ebay.