this retailer sells a halal nail polish. this allows for oxygen and water to go through the nail, which makes it acceptable to wear during prayer. spread the word.
“Being a relatively modern creation, nail polish remains obviously unaddressed by early Islamic sources. But the general consensus in the Islamic community is that praying with nail polish is impermissible because of the waterproof barrier it creates on nails, which prevents the wudu ritual from being completed five times a day.” (source)