What should I do with my nascar 1/64 diecast collection?

I have about 300 of those little cars and i dont want to sell them but how should i put them on display?

How do you make custom nascar diecast in 1/64?

i saw this guy he has alot of custom ones and i was wondering how do you make it and how much does it cost?

NASCAR Diecast Review- Kyle Busch 2008 M&Ms Toyota 1/64 Kids LOL

just watch