Borrowed from French attrape. Attested since 1782.
attrapp c
- dummy (object made to imitate another object or being)
2018, Misslyckade brott, Pug Förlag, →ISBN, page 47:Johan har dragit sitt tjänstevapen. Sig Sauern alltså, inte attrappen.- Johan has drawn his service weapon. The SIG Sauer that is, not the fake.
- mock-up, mockup (scale or full-scale model of something)