Take Your Pick for Example
Picks are another good tool to experiment with both electric and acoustic. There are probably more than a hundred shapes, composites and thicknesses of picks each with their own tonal fingerprint. There are even expensive boutique pick manufacturers like Wegen picks. I prefer the Gypsyjazz pick for Django stuff and some acoustic soloing and the bluegrass picks for, um, bluegrass.
When I play acoustic on a recording session I'll have as many as twenty different picks to choose from. All different shapes and thicknesses and made of varied materials (not to mention my fingers). It's a cheap way to vary the tone of the same instrument. Eventually, your ear will become increasingly able to tell which combinations of picks and strings bring out the best your guitar has to offer. Try recording your guitar using different picks to hear the variations in tone. You could do a "blind taste test" of sorts.
Video from previous post...
A peck of picks for your perusal...
Dunlop Nylon Standard Picks, Black 1.0mm - my preferred acoustic strumming picks
Dunlop Jazz III Pick Pack, Black Stiffo, 1.38mm
Dunlop Tortex Pitch Black Standard Guitar Picks 1 Dozen, 1.0Mm
Dunlop Big Stubby Picks, 3.0mm - these are pretty thick
Dunlop Delrin Pick Packs, 1.14mm/Light Pink - the 1.5mm versions of these I use on electric