- 65 gold dollars - wrap in pretty tissue paper, then all in something related to her tastes (e.g., sand pail & shovel with flip-flops, jewelry box, pot/planter, plain box with pretty wrapping & candy, etc - dollar store stuff). alternatively, do $50 in the gold coins & 15 chocolate gold coins
- if you do a GC (maybe airlines GC?), consider putting it in a pretty luggage tag, passport holder, etc
- do you have any older photos of their family (MIL, FIL, DH & siblings) on vacation, etc? get one or two beautifully (double?) matted & framed for a memorable gift
- GC to ancestry.com or one of the other genealogy sites. Put the GC with a token of her heritage (think shamrock "something" for Irish, Godiva chocolate for Belgian, etc).
- If she ever expressed a desire to travel internationally, a "coffee table" style book (with lots of pictures!) about that destination, If she enjoys art, a book of that particular artist's works
ask your DH what his mom liked when he was growing up. you can gain a lot of insight there.