This might be my new favorite bushing:
Sloting Plus "Victor II"
Sometimes while working on various chassis you run across a situation where you just can't seem to get it right. This was in a Carrera Torino and after trying to fit a standard set in here, I remembered I had a set of these. Snapped them in and bam! Smoothest fit. Tip the chassis, the axle falls out...you know you have it right then :)
At about 7 bucks a pair they are not giving them away...but on most projects of mine, I'll go for items like this to save me time and give me good results.