I can remember when pinatas and going to a luau were considered pagan. The WTS reconsidered on that.
https://wol.jw.org/en/wol/d/r1/lp-e/102004486#h=14:0-16:499
Piñatas I read with interest the article “The Piñata—An Ancient Tradition.” (September 22, 2003) It left me with some questions. The ties to false religion are well-documented. But the article seemed to take the position that as long as it doesn’t bother someone’s conscience, it is OK. What about birthdays and holidays such as Christmas?
S. W., United States
“Awake!” responds: Christians refrain from any celebrations or customs that continue to involve false religious beliefs or activities that violate Bible principles. For example, the Bible definitely puts birthday celebrations in a bad light. (Genesis 40:20;Matthew 14:6-10) However, if it is very obvious that a custom has no current false religious significance and involves no violation of Bible principles, each Christian must make a personal decision as to whether he will follow such a custom.
And Luaus
https://wol.jw.org/en/wol/d/r1/lp-e/102002410?q=luau&p=sen
Although the luau may originally have had some connection with false religious practices, the word has simply come to refer to a Hawaiian banquet. Many Christians may therefore conscientiously feel that they can participate.