Today is challenge day!

You will need a tripod, a table, a straw, a small dish or lens cap will works, a black background, a strong light above the table about 30cm (12 inches).  Firstly set up the place that you are going to use to photograph the bubbles. Create the bubble mixture three parts water to one part dish soap.  Place a small dish or lens cap on a black surface if you need to elevate it place it on top of a cup.   It is best if you take the photo with a low f number maybe f22 to get the depth of field with all the colours. Shoot away!  If you aren't getting the colours, maybe try a different brand of dish soap as needed. You will be surprised at how different each shot is, as the bubbles are moving all the time. I am  looking forward to seeing your efforts.