The Touché Ice Vibrating Bullet Massager (Sextoys.co.uk, £33.99) on the right is half ice, half bullet. It comes with a section that you fill with water, re-attach to the blue section on the bottom (also available in several other bright colours) and place in the freezer for a few hours.
Essentially, it’s a vibrating ice cube. It comes with a freezable flavoured lube too if you’d rather use that than water. The ridges on the base mean you can flip it over after the ice has all melted.
Now all you need to do is hope for a late summer.