Batch File take user input, select random file from subfolders of batch file, copy and rename random file with user input suffix

What I want to do is take the user input and store that into a variable,

then select 1 random file from each sub folder, copy the random file and add a suffix of the user input to the end of it before the filetype.

so it will be like this:

Enter Text:

Enter Text: texmod


subfolder/
image.dds
background.dds
healthmeter.dds
powermeter.dds
engine.dds
cursor.dds

subfolder2/
image.dds
background.dds
healthmeter.dds
powermeter.dds
engine.dds
cursor.dds

When the user presses enter, a single random file in each sub folder will be copied and pasted, with the user input added as a suffix before the filetype.

subfolder/
image.dds
background#texmod.dds   was randomly selected and added the user input suffix
healthmeter.dds
powermeter.dds
engine.dds
cursor.dds

subfolder2/
image.dds
background.dds
healthmeter.dds
powermeter#texmod.dds  was randomly selected and added the user input suffix
engine.dds
cursor.dds