We've all seen the very sweet "Open When" letters idea, where you send your other half/ Best friend/ Family a series of letters to open in different situations.
Artist creates little matchbox greeting cards with hidden messages inside (part I) - (Diy Geschenke Box)
Diy jelly things- Site in another language- Medium materials
DIY your photo charms, compatible with Pandora bracelets. Make your gifts special.
Advent calendars for friends/family.