I think it is all the colours they come in that inspired this Volkswagon van cross stitch chart. It is a super easy to hack chart so you can make the VW van what ever colour you want. You could do a whole shiney convoy like this!
FREE Cross Stitch Patterns
Purple Butterfly Heart PDF Cross Stitch Pattern
Butterfly Heart counted cross stitch pattern PDF - instant download! Finished size on 14 count aida fabric is 55cm x 55cm (custom sizes