Gimcrack

[Sarah]

A trivial mechanism; a device; a toy; a pretty thing.Arbuthnot.

[Sarah]

An item or feature that, while it initially appears to or is presented as having value, actually turns out to be relatively worthless.

[Hina Muqadas]

attractive on the surface but badly made and of no real or permanent value

[Greta]

Flimsy or poorly made but deceptively attractive.