While it has been over the last 2 years, I have done a bit.
Added the Cravenspeed Flexpod and Speedhut Boost and Oil pressure gauges for the X-R's 10th birthday.
Installed the TRD Quick Shifter.
Replaced the 10 year old JVC head unit for a new Pioneer AVH-521EX when the screen crapped out.
Replaced the door component speakers with version 2.0 of the same Hybrid Audio Unity Series.
And most recently new shoes. Pirelli P Zero All Season.