i can do static with a photoshop plugin get pspi which lets u run photoshop plugins in gimp, install it then download the photoshop plugin glitterato by flaming pear and install it now u can add a glittery effect not animated but cool
ok links pspi http://www.gimp.org/~tml/gimp/win32/pspi.html just follow instructions on page and photoshop plugin glitterato http://www.flamingpear.com/download.html scroll down until you see the plugin called glitterato here download the windows version it has a windows icon next to it, ok now install the plugin with the instrucitons on pspis page should work for you