 Visual arts were practiced underground as well . <unk> , restaurants and private homes were turned into galleries or museums ; some were closed , with their owners , staff and patrons harassed , arrested or even executed . Polish underground artists included <unk> <unk> , Stanisław <unk> @-@ <unk> , Stanisław <unk> @-@ <unk> , and Konstanty Maria <unk> . Some artists worked directly for the Underground State , forging money and documents , and creating anti @-@ Nazi art ( satirical posters and caricatures ) or Polish patriotic symbols ( for example <unk> ) . These works were reprinted on underground presses , and those intended for public display were plastered to walls or painted on them as graffiti . Many of these activities were coordinated under the Action N Operation of Armia Krajowa 's Bureau of Information and Propaganda . In 1944 three giant ( 6 m , or 20 ft ) puppets , caricatures of Hitler and <unk> <unk> , were successfully displayed in public places in Warsaw . Some artists recorded life and death in occupied Poland ; despite German <unk> on Poles using cameras , photographs and even films were taken . Although it was impossible to operate an underground radio station , underground auditions were recorded and introduced into German radios or loudspeaker systems . Underground <unk> stamps were designed and issued . Since the Germans also banned Polish sport activities , underground sport clubs were created ; underground football matches and even tournaments were organized in Warsaw , Kraków and <unk> , although these were usually dispersed by the Germans . All of these activities were supported by the Underground State 's Department of Culture . 
