Contrivance
Any improvised arrangement for temporary use
An elaborate or deceitful scheme contrived to deceive or evade
A device or control that is very useful for a particular job
An artificial or unnatural or obviously contrived arrangement of details or parts etc.
Examples
The plot contained too many improbable contrivances to be believable
The faculty of contriving; inventive skill
Examples
His skillful contrivance of answers to every problem