Words similar to periscope

Example sentences for: periscope

How can you use “periscope” in a sentence? Here are some example sentences to help you improve your vocabulary:

If he lacked imagination, he'd need an older sister whose friends slept over, plus a homemade periscope, assembled at a scout meeting during those interludes when he wasn't being fondled by the scout master, Father O'Finian.
As they prance out of their bunker and around the strange, apocalyptic landscape where they live, periscope speakers pop out of the ground and feed them orders.