I wrap a thick rag around my hand and punch them on with the side of my hand.
Be glad you aren't working with the Cougar mesh wheels. They are a ***** to snap in place, and they have about 25 plastic holding tabs that gradually start to fall off.
97 T-Bird LX 4.6 - 80k miles
94 Supra TT Auto - street/strip car
04 CVPI- Brenda's car - 76k miles
95 T-Bird LX 4.6 - fully optioned, owned 15 years, 220k miles
96 Cougar XR-7 4.6- Brenda's car, owned 11 years, 187k miles
88 T-Bird 3.8 - first T-Bird, owned 5 years, 206k miles