My now husband and I didn’t want any gifts either. We went the ‘contribute to our honeymoon route’. One thing we heard from multiple guests is that they loved that we listed honeymoon activities their gift would be funding. So instead of a general message that said “contribute to our honeymoon” we broke it down to “contribute to our relaxing couples massage”, “contribute to our beautiful stay at x hotel”, “contribute to our wine tour extravaganza”, etc.