I greased my hands with Crisco before I worked with MMF and now the fondant is shiny. Is there a way I can get rid of the shine? Cornstarch? I am working on decorations for a cake that's due in 2 days. Thanks.

I would dust lightly with powdered sugar, so you don't dry out the fondant too much...hopefully it's white fondant, or you'll have to worry about getting rid of the white dust. Good luck!