Flexsystems makes custom pvc rubber keychains are very popular and affordable for a variety of uses. From promoting your event or store opening, for schools and colleges, fundraisers and trade show giveaways. Flexsystems can make any shape or size you like. Need glow in the dark? Reflective? Want to add a nice scent? We offer rush services-parts in days. As well as fulfillment and assembly services. No minimums and all our custom keychains are made in our San Diego factory.