Spyglass

The Spyglass is a handheld device, similar to a telescope. It has been used on multiple occasions by Hiccup, and other characters. It is possible that Hiccup invented the Spyglass, as he is the only one to use it whilst still living on Berk during Riders of Berk  and ''Defenders of Berk . ''

Appearance
Similar to the appearance of a telescope, it is probably made of animal skin, wrapped in a conical shape, with lenses on each side. It is fairly small, as it can be held in the hand with ease, and stored in a satchel easily.