Engraved Keyrings What Should I Get Engraved On These 2 Keyrings I'm Getting For Me And My Hubby?

What should I get engraved on these 2 keyrings I'm getting for me and my hubby? - engraved keyrings

http://cgi.ebay.co.uk/Joining-Hearts-Duo ...

I want to write something special for me and my husband have many things in them that are generally to be seen for all, I registered the custom then, what do you suggest?

Something like:

"I love K" and "I love S"

or

Each of our names ...

Or something like that should be kept short and sweet due to proposals for space reasons - other?