Superb idea. I’ve placed condom packets In my wife’s handback without her seeing them and waited for her to open her handbag, or on another occasion I texted her and told her to check the contents of her bag and to enjoy herself if the opportunity arose.
My wife is away in Glasgow on a course, I bought her a new dildo and put a note asking if we could do some role play pretending she has a big man satisfying her while she’s away. We’ve never done this thing before so I was absolutely amazed when 20 mins ago I had this!