With butter, someone I know has done several varieties of cookies - chocolate chip, maple bacon, cranberry orange, brownie pops, with various enhanced frostings.
1/2 c fancy butter to about a batch of 2 dozen lends a good distribution.
With a oil/alcohol based tincture - gummy bears and fruit roll-ups, or just good old fashioned jello works well
Edit: Also, some leftover solids after making one of the above (butter or tincture) made some pretty tasty (and potent) pesto