Step 1 gather your supplies
You will need a new Soothie, a seam ripper, a needle and some thread.
Step 2 remove the old Soothie
If you pull back the wubbanub's "lips" you can see the stitching. Just cut the stitches with your seam ripper being careful not to cut the fabric or stab yourself in the finger (never fails I do it at least once a week and it hurts!)
Step 3 replace the old Soothie with a new one making sure that the WubbaNub plush is flush with the pacifier shield.
Step 4 stitch through both sides of the WubbaNub plush's mouth and the stump on the pacifier. 6 or 7 well spaced stitches with a good sturdy thread should be enough to hold it firmly. Using a thimble or solid surface to push the needle through or a pair of pliers to pull the needle through may be helpful if you are having a hard time getting your needle through all 3 layers. Tie off your thread and clip it short.
Pull on the pacifier to make sure it is tight. Be sure to check the WubbaNub for signs of wear, loose thread etc before each use.