Luton have made their ninth summer signing following the arrival of winger Danny Green.
Notts County have signed Togo international Mawouna Amevor on a two-year deal.
The 60-year-old stepped down from the post last month as a result of Oranje's dismal Euro 2012 campaign, in which they failed to win a single point during the group stage.
Since then, Van Marwijk has been linked with several jobs in Holland and overseas but he admits he is not ready to return just yet.
"There have been interesting offers, both financially and on a sporting level," Van Marwijk told www.spitsnieuws.nl.
"I have total freedom and no obligations, and right now I have no appetite.
"Who knows? Maybe in a month I'll go to work somewhere or maybe I'll stop altogether.
"No, I won't do that, it is more likely I will go back to work. But I have no idea when and, in that respect, these are exciting times."