I don't know what kind of cards you make Yorkiegirl but you could do a general hearts and flowers type design then stick little printed strips over the front with great 'theatrical' lovers written on them ie 'Romeo and Juliet'... 'Richard and Liz'(Burton!) ... etc. actually just occurred to me that they all ended up dead or divorced so maybe not such a good plan... I know there are lots of happy Shakespearian couples though ... It might appeal? Then in the middle you could have a lovely Shakespeare 'love' quote. Can't think of any at minute but easy enough to goodle.