So I busted out my old hdd and found my collection of mymenuify themes! I'm currently uploading over 500 MB of themes I saved and backed up from back in the day! They're not super organized, and I can't say I've tested them all or that 100% of them are safe, so the usual precautions should be taken.
I'm uploading to the folder as I'm typing this so it may take an hour or so before everything is finished uploading.
Here's the link!
https://www.mediafire.com/folder/gw1mwvotau1mx/MyMenuify_Themes
There are 2 that look promising for you:
\Themes 4.0 and up\non36runfirst.mym
\Themes 4.0 and up\pirateskulls40\pirateskulls40.mym
\BlackPirate.mym
In some cases you may need to apply two mym's to fully create the theme
TLDR: Uploading my massive theme collection of just under 200 themes!!