The Original Impossible Passthrough

The Original Impossible Passthrough has been turning heads since it first landed in June 2024, and this 2026 refresh keeps everything that made it a favourite. Picture a single tapered cone, fluted from a wide base up to a needle sharp point, its surface carved into long spiral blades that twist the whole way up. Look closer and the trick reveals itself. What looks like one continuous piece is actually two: a slightly slimmer male cone that appears to thread straight through a larger female cone around it. The fins never actually cross, the geometry just tricks your eye into believing it, which is exactly why it is so much fun to hand to someone and watch them turn it over looking for the seam. Pull the two halves apart and you get a second surprise: the flat face blooms into a six petal flower shape, with the RJ Design mark tucked into the centre. It looks just as good split on a shelf as it does stacked into one solid cone on a desk. Printed in PLA+ for a smooth, crisp finish on every fin and petal, it comes together at roughly 56mm across and 86mm tall, so it sits comfortably in one hand or on a bookshelf. Pick a single colour for a clean, sculptural look, or mix two for extra contrast between the male and female halves. Made to order and ready in one to two days.

The OzFDM team prints each one to order in Australia, so quality stays front of mind every time. Made from durable PLA+, with local customer support behind every order.

Want a different colour to match your space? Just ask us before checkout and we will do our best to accommodate.