2.) "There, I fixed it." may also be used after successfully attaching one item to another using the same unconventional, sometimes unethical, methods of taping, nailing, sawing, cramming, cutting and "resculpturing".
2.) "My doorbell stopped working, so I filled my garbage disposal with spoons, duct taped an old extension cord to the power switch, then ran the cord through a hole I drilled in the front door. All you gotta do is give the cord a little tug. There, I fixed it."