I think the person who gave me this lava lamp built a periscope in so she could be creepy and watch me while I work! : r/Lavalamps
Grande Sized Lava Lamp Restore Kit – Lava Lab Creations
Amazon.com: Lava Lamp for Adults Kids, Color Changing Jellyfish Lava Lamps with 2 Jellyfish, USB & Battery Powered Desk Decor Aquarium Mood Lamps, Holiday Birthday Gifts for Boys Girls Women (Black) :