Is it permissible to place shoes in front of a worshiper during Eid prayers for fear of them being swapped?

There is no objection to placing shoes in front of a worshipper if they do not cause harm to others. The Sunnah is to pray with pure shoes, following the example of the Prophet (peace be upon him) and differing from the Jews. If a worshipper removes his shoes, he should place them between his feet so as not to harm anyone with them.