not too much value imo... it's the silent "S" at the end that kills it more.. not to mention that "jouer", "jouet", "jouets" are all pronounced the same way... maybe seo-wise it may be a different story
Yes that's not the greatest domain ever but you already know it ! so it might be diffcult to sale. Maybe contacting the owner of jouet.org, jouet.fr and jouet.com (who i think is the same person based in France). Maybe also the owner of jouets.com which is a PO box in Cayman Island. All these domains are for sale so these owners may be interested in buying it to complete their "collection".
If you need to contact the french owner i can help as i am native french speaker.
Regards