sounds like an interesting idea
one could slowly add acetone till it dissolves dmt and hopefully not plant oils/impurities. The only possible problem I see is if even adding slowly the acetone would equally dissolve impurities and dmt and therefore not really cleaning it up (except for polar impurities which would stay in water, but those could be cleaned with a simple wash too)
In any case I appreciate experimentation attitude, and I support trying these things out. Do tell us if you try, maybe with pictures, whether it works or not the results should be posted!