The Polish flag is composed of two simple horizontal bars of red and white, with white on top. This flag would be ideal for a small tattoo, as there is little to no detail. The tattooed image can appear flat against your skin, or wavy, as though tied to a flagpole and responding to the wind. This would also be an example of a tattoo that absolutely requires color in order to adequately portray its meaning.
Diplomatic Polish flags have a red and white eagle crest over the white half of the flag. This eagle looks off to the right and has a crown on its head. For tattoo purposes, consider representing this eagle on its own in either the red and white colors of the flag, basic black and gray shades or colored to look like a real-life eagle perched on a branch or suspended in air. This can be a highly detailed tattoo and may require more space to display adequately.
Script tattoos are numbers, letters or words designed in any particular font of your choosing. You can even choose to design the font yourself to make it all the more personal. Determine a quote or saying that particularly speaks to you and script it in the Polish language, such as the first line from the Polish National Anthem "Jeszcze Polska nie zginela," which means "Poland has not yet succumbed." The words can be any length, but keep in mind, the more words, the larger the tattoo.
If your family has deep roots in Poland, there may be a Polish crest specified to your family. The crest may be a variety of colors, which would be necessary for the tattoo as well as a scripted motto and your last name. Family crests are often highly complex tattoos that require a large amount of skin but they can also be the most unique, as only other members of your immediate heritage could possibly have it, too.