I wouldn't be at all surprised if there is already a mixer service that's a honeypot

Also, remember as we have noted this on AnonymousPlanet.org:

"Use of “private” mixers, tumblers (centralized services that specialize in “anonymizing” cryptocurrencies by “mixing them”) and coinjoiners are risky as you don’t know what’s happening on them and can be trivially de-mixed. Their centrally-controlled nature could also put you in trouble as they are more susceptible to money-laundering laws."