Image data from MySQL into TreeView

I'm using MySQL to store my icons and some other graphics
I plan to create a web as well as a perl-Gtk front end to
the DB. (Thus I have to store the graphics in the DB

Q: The mysql cookbook showed my how to obtain the image as
a scalar from the DB. Now I can print that to a file and
have an exact replica of the graphic.

I want to use these icons in my treeview.
I've thought of dumping these icons into temp files and
then create them by 
print TEMP_FILE ($icon_from_db)
pix => Gtk2::Gdk::Pixbuf->new_from_file(<temp_file_name>)

Is there a quicker and more proper way?

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