Changing background on phone

I have an Android Samsung S4.
I want to change my background.
I want it to be a list of critical phone numbers.
Like, if I keel over call in this order:
phone number 1
phone number 2
phone number 3
...

Normally I use those numbers, and only a few selected numbers, in my
"Favorites". However new corporate policy is that all phones must now use
a PIN. So I figure that the EMS or whatever will not know my PIN so I
thought I'd change my background to something useful. Could also be good
for those "if you found this phone call these numbers to return it" kind
of thing.
What do you recommend to use to change my background?
I thought of just printing out a list of numbers, taking a snapshot of
that and using that, if nothing else.

I've been warned by my boss not to put my pin on such a list. Oh, he
knows me well...


Rob Berendt