Cheaply made and Spur-of-the-moment

Spur-of-the-moment and cheaply made are semantically related. In some cases you can replace phrase "Spur-of-the-moment" with "Cheaply made", this phrases are similar.

Spur-of-the-moment adjective - Made or done without previous thought or preparation.

Cheaply made and spur-of-the-moment are semantically related. You can use "Cheaply made" instead an adjective phrase "Spur-of-the-moment".