The rise of 3D printing means, among other things, that you'll never again have to settle for a sex toy that doesn't hit all the right spots. This fun, and exceptionally geeky, website lets you use Bézier curves and other fun parameters to build your own perfect fit ... and a bunch of other designs that are unlikely to fit anywhere, ever.

No two humans are the same shape. I myself have size 12 feet that seem to be wider than any non-specialized commercial shoe can handle. The day I discovered there was such a thing as 4E width shoes, and that you can buy a wide (ha!) selection of them over the internet was a wonderful day for me.

And this day might be just as special for you if you have oddly-shaped nether regions. A Berlin coder has built a system that lets you custom design your own sex toy, and have a silicone mold of it 3D printed in a range of colors.

The Dildo Generator website isn't here to judge. It simply gives you a 2D section to play with, and the ability to add as many Bézier curves as you like, then shows you what you're building in a separate 3D model box.

In addition to the cross-sectional shapes, the adventurous can add an overall "bend" and "twist" dimension, to get to all those hard-to-reach places.

You can then download an inverse mold of your creation as a .STL file for home 3D printing, or send it to a supplier. Pour some medical-grade silicone into the mold and you're ready to test it for fit and function.

We had a quick play with the dildo generator software and came up with a few ideas you may wish to consider. We start with the "White With One" – for beginners and the less adventurous.

We move on to "The Pacifier" – a soothing unit for bedtime fun.

Need a fancy dress costume? Look no further than "The Tail of Lucifer."

And if you're up for a challenge, there's the "Sportsman's Bet." But we recommend you keep your local emergency service on speed dial and a good excuse at the ready.

Of course, this is really just a bit of fun, but it serves to demonstrate the kinds of niche projects that 3D printing is making its strongest case in: short-run, custom or highly specialized projects, or projects based on an underlying design concept to which customers can add their own tailored touches.