Maybe!
 

If the price was right and the fit was right. But could never wear it for a swim workout. https://www.mydivascloset.com/piyepodotpub.html

This should help you more or less
Its a Thai brand called People Of Personality

Please have a look at the Collection 2016 in this website
https://www.popstudio.us/collections/frontpage

But I am not sure whether it ships aboard or not.

Web site says thy are located in Bangkok and ship worldwide for free.

Yes. Check out Harajuku Swimwear on Etsy. JoEllen, the owner, makes some awesome bikinis including a yellow polka dot one. I have several of her bikinis in some very feminine prints. Love them!

How about black with yellow polka dots?

Bought this on eBay a few years ago.

There used to be one of my ‘go to’ pictures on the internet, years ago of a guy, lying on an inflatable, wearing a string yellow spotted bikini brief. Wish I could find it again to share it.

Search for "Etsy Harajuka mens low rise swim brief yellow polka dot". It's is for sell by Harajuka at $38.

Both Shein and Zaful sell a yellow polka dot bikini for women.

After seeing this post of itsy bitsy hello polka dot speedo that song from the 50's is stuck in my head: "It was an itsy bitsy teeny weeny yellow polka dot bikini" (that she wore for the first time today) It is driving me crazy!