Gideon,
I just found this from
http://www.achtungpanzer.com/polcamp.htm and an excerpt is below:
"Polish light tanks and tankettes were the first opponents for the German Panzers. Patriotic but outnumbered Polish tank crews with their mostly outclassed equipment fought bravely and managed to destroy a number of enemy vehicles, while defending their homeland from both Germans and Soviets. Polish Campaign is surrounded by numerous myths such as the destruction of Polish Airforce in the opening hours of the invasion and Polish Cavalry charges against German armored units. Both myths are creations of German and even Italian propaganda and are very far from truth. Polish cavalry was active during the campaign and acted as horse mounted infantry. One of the most successful cavalry charges took place at Krojanty, where elements of 18th Uhlans Regiment attacked and destroyed German infantry battalion only to be counterattacked by German armored unit. Uhlans attempted to withdraw and suffered heavy losses. This event lead to the story of Polish cavalry charges on panzers. Polish Airforce was deployed at numerous airfields and although numerically inferior and partially obsolete was very active during the course of the campaign (e.g. over Warsaw). Polish pilots shot down in combat over 137 enemy planes. Polish cavalry brigades never charged tanks with their sabres or lances as they were equipped with anti-tank weapons such as 37mm Bofors wz.36 (model 1936) anti-tank guns (that could penetrate 26mm armor at 600m at 30 degrees). The cavalry brigades were in the process of being reorganized into motorized brigades."
I guess this puts the kibosh on a FoB for this idea.