In my case, I recently took some old Zipp 404's and breathed some new life into them by adding some dimples and new graphics using perforated window vinyl -- this is the same perforated vinyl film that they use on store windows and buses. the vinyl used here is "50/50" -- it let's 50% of the light through. the vinyl also comes in 30/70 (i.e. lower dimple density) and 70/30 (i.e. higher dimple density). this film creates dimples about 1.6mm diameter and approx. 0.125mm deep

cost: about $32
total project time: about 45 mins
project type: total DIY hack #cheapspeed

beats having to upgrade to a new set of Zipps when the existing wheels are still perfectly good.