A scale model of what you sell
1:25 or 1:50 of the boat, the quay or the machine, built from your own drawings and delivered in a case.
The problem
You sell something big. It does not fit on the stand, and nobody stops at a roll-up with photographs on it. A model on the table gets picked up and turned over, and then you have the conversation.
The fix
The model is built from the customer's own drawings or measurements. What has to change is the detail: a railing stanchion that is correct at scale can come out 0.4 mm thick, and it will snap in the case. Anything under 1.2 mm — about three extrusion widths — is thickened or made from wire instead. The model is split and pinned so each piece prints in the orientation that gives the best surface.
A model is days of machine time, then filler, sanding and paint. FDM layer lines do not disappear on their own, and a model that has not been finished looks like a print. That is why it is priced by hours rather than by grams of plastic. One model or five: below a few thousand pieces there is no cheaper way to make it.
More ideas
A hook guard that actually stays on
A soft TPU clip that snaps over treble hooks and jigs so they stop catching nets, clothing and fingers.
A rod holder that fits your rail
A parametric holder printed for the exact tube diameter your boat has — not a standard no boat actually follows.
Gear tags for nets and pots that last
Name, phone number and registration embossed into the tag itself — not written in marker that vanishes in three weeks.