Your Stamping Notebook: page 7 of 14

Bend it, Curve it!
Another CTMH video link showcasing beautiful examples for you.

This shows how a CTMH clear acrylic text stamp can be  bent or curved as desired.

The other technique is called masking.  There are loads of fabulous youtube videos detailing this technique.  Here is the CTMH Masking video link.  They show how to use "sticky notes" or Post-it notes to mask, which is great.  Another way is to use Scotch tape, washi tape, or any other low tack tape.  Here's how:
1.  If it's a new stamp, stamp your arm or clean it to get the manufacture process oil off. Put the foam padding under your paper, ink up your stamp and do a test stamp.  Stamp off the ink or clean with your spritz & scrubber.
2.  Put tape over the parts you don't want in a particular colour, ink the stamp, remove the tape, wipe away any stray ink from your block if needed, and stamp your image as in step 1.  Stamp off the ink & rub it on your scrubber.
3.  Repeat step 2 until you are done building the layers of colours in their sections.

Obviously, you could use a cotton swab or your finger to rub away the ink from the areas you don't want them instead of masking.  The with a baby wipe or cotton swab is they can leave fluffies on the stamp, which usually mucks up the next stamping portion.