Some old Casio keyboard ($15 at my local thrift!!)
A cheap electric guitar
some examples
in this track, you can hear my bass guitar, chopped up samples of my electric guitar, and many of the plugins i listed above, including Gatekeeper, Shaperbox 3, and of course FabFilter's Pro-R and their wonderful limiter Pro-L for mastering
this track was quite literally just me messing around with unplugred's VSTs on a simple Rhodes piano
and in this track, you can hear both my bass and guitar, as well as unplugred's delay