Advertising on your car is easy and cheap with the help of some readily available supplies at your nearest office supply store.  Office depot, Staples, Chapters and Toys 'R Us will all have what you need including dry erase markers for writing on windows, and Ink Jet printing kits to create door magnets and clear window decals.   Avery's printable door magnets and window decals are sold in packets of 5 or 6, so the cost for you to print an advertiser's message is around $2 plus the cost of toner/ink.  For this reason it is recommended to specify a small setup fee of $3 or $4 with each order.   Window decals are non-adhesive and can be peeled off and re-applied in case the advertiser wants to order from you again when the campaign is complete.

When looking for dry erase markers, look for those that are clearly visible on mirrors, and dark and white dry erase boards.  These will show up really clearly on car windows.  For more information please see our car advertising samples here:  Car Advertising