Tinfoily

It tinkles. As it skitters along the ground, it makes a tinny, tinfoily little noise as its edges scrape along the concrete.

Source: wiktionary

The walls were festooned with silver and white tinfoily stuff, and on every table stood a tall slim vase, spilling over with sprayed silver flowers.

Source: wiktionary

“There’s a tinfoily blanket thing, a prescription bottle full of something. Pain pills?”

Source: wiktionary

By the time you land an engineering gig at Apple, you are a twitchy, tinfoily mess.

Source: wiktionary