My laptop hasn't had stickers since a CTO asked why mine didn't have any stickers like the ones on the laptops of his cool cloud team. Personally I've found laptop stickers bad taste since then.
You are hanging out with the wrong crowd, if you can't get stickers the CTO would disapprove of. Visit a local squat, there are probably some which directly address the CTO job title. X-lube comes with collectible stickers too.