Find inexpensive Custom Envelopes at Invite Shop.Custom Envelopes start at $0.49/each and are fully customizable. What makes Invite Shop different? We are proud to offer quality Custom Envelopes at a fraction of the cost you'd pay elsewhere. All Custom Envelopes are fully personalizable and come at low flat rate prices starting at $0.49/card. That's it. Simple pricing. No gimmicks or coupon codes to remember. Just amazing Custom Envelopes designs for you to customize and order without going over your budget.