I have a contact for a signs & graphics shop that I've had stickers, vinyl, and other marketing material printed before. They do a lot of work for the film, TV, and retail space, but also cater to startups/tech companies with good quality and VERY quick turnaround times.
Unfortunately, they are located in Toronto, Canada, but they ship globally and can do any type of custom work. Reasonable rates as well. Message me if you're interested and I can forward you the contact.