Exchange smileys in W810i - possible?

Hey everyone,

i want to try change the fonts of the W810 to the fonts of the W850i. Found the tutorial here in the forum and know what to do :).

But as i searched for "smiley" i didn't find anything. The smileys in the W810i look boring ;) - so i want to include my own one or the ones from the W850i.

In the Change-Font thread i saw an image of a K800i where other smileys are visible.
As i scrolled through the file system of the W810i i couldn't find any file which contains the smileys.

Any idea how i can realize my project?

Thanks in advance and best regards
teerfass