Pay once and the block is yours for good -- no renewals, no expiry. You'll pay through Stripe, then get a link to upload your artwork. Nothing appears on the board until you do.

Payments are bypassed on this server, so this block is yours immediately. You'll go straight to the artwork step.

This block is out where few screens reach, so it's free -- hold up to 5 free blocks across all boards, 30 days each. Do well back here and you'll want to buy forward.