Es el mio is perfectly good Spanish
> Mi aerodeslizador está lleno de anguilas
to
> El mio aerodeslizador está lleno de anguilas
And
> Mon aéroglisseur est plein d'anguilles
to
> L'aéroglisseur a moi est plein d'anguilles
Spanish and French natives feel free to correct me. :)
EDIT: Thanks for the corrections.
This sounds extremely stilted and unnatural. If you really wanted to emphasize it was your hovercraft, you’d say “mon aéroglisseur à moi est plein d’anguilles” but even then it sounds heavy handed.