365 51, A Cross a day, Yellow items? Guess what they are!

Can you guess what these round things are????? Give me a guess in comments. 

 i like the effect this item projects.  It appears to be an effect of glowing bright yellow and shadowing of what appears to be a darker color.  Check back in a week on the last day of February i will show the item with a new cross and different color, but of the same item(s).

May you cross a creative inkling today.

LFS, liz