Here is more info on the car magnets:

Regular Size (8" x 4") ribbon magnet: http://www.supportourribbons.com/m/160153
1 for $7.99 each
10 for $5.99 each
50 for $4.26 each
125 for $3.98 each
500 for $3.30 each


Mega Size (16" x 8") ribbon magnet:
http://www.supportourribbons.com/m/160166
1 for $24.99 each
10 for $18.99 each
50 for $16.99 each
125 for $16.99 each
500 for $16.99 each