They are emigrating for financial reasons.
a bottle of good scotch whiskey - but leave the price tag on the bottle.
when settled there, they will keep wondering:
"dafaq, how is it the distillery is a 3 hour drive away from where we live and yet in darkest africa, where the same bottle travelled across the planet to get there, it is much cheaper" ?
happy memories !!
oh, if they have an "interesting" sense of humor, you could always give them a nicely framed photograph of each of our many royal families - let them show those poncey brits a thing or two about royalty !
or, my personal favorite:
a big, nicely framed poster of julius malema, to be attached to the back of the guest toilet door.
i have one.
it has never ever, not even once, failed to elicit response from anyone who may have been sitting there, pants around their ankles, having just been subjected to an angry looking juju staring back & overseeing proceedings.
**the juju poster seems to have a desirable side effect.
guests making use of your "facilities" may probably find an image of verdant rolling laws & cascading waterfalls more conducive to the task at hand.
juju however, seems to trigger an involuntary muscle response, causing the sphincter to pucker up and seal - fortunes in expensive toilet paper gets saved (discourages masturbators too).