Not a bad idea, Michel. Of course, there has to be a theme - Barbarossa victims, bombers, fighters, VVS, Luftwaffe, Axis allies, etc. My vote of course would be 1/72nd scale Shturmoviks!
I would definitely be open to other suggestions. One suggestion might be 1/72nd scale Axis allied aircraft used on the Eastern Front, either of German or native origin. For example, you could do a Romanian He-112, or a Hungarian Cr.42. If nothing else, this might persuade me to buy a Cr.42 or finish my Hungarian He-170. However, this is a VVS site, so we might want to restrict the build to VVS-only aircraft.
Best Regards,
Jason