The showcasing technique is terrible because only the strongest and most confident students will succeed in the skill. Even if a student can perform the skill when practicing in a group, he may be too shy to perform the skill with the entire class sitting there watching him. This technique also severely hinders activity time because only one students is doing anything at a given time. If your class has 20 or more students in it, that could take the entire class time and each student would only have had about two minutes of activity during the whole class, depending on the class time.
I personally will not be using many of the games and techniques described in the Hall of Shame, but I will definitely be using tag games as part of my lesson plan. Tag games, when done correctly are amazing tools to keep kids active and participating. The style that is described in the Hall of Shame is obviously terrible. If you get tagged and are out for the rest of the game, then that is a major waste of time. As a teacher, I will modify the game so that the kids are active throughout the game. Kids love to act like animals and firemen and policemen, so coming up with tag games that are based on these would be a good idea. You could play cat and dog tag, where the taggers are the dogs, and the non-taggers are the cats. The dogs (taggers) chase the cats (non-taggers) and after a non-tagger is tagged, they then become a tagger. Blob tag is another popular tag game and it keeps the kids moving, and also works on the affective domain as well.
Almost every child that I have worked with absolutely loves to play tag, and they will play tag forever. The key is to have more than one type of tag game in mind because they will get bored with playing only one single type of tag game for 40 minutes, or however long the class period is. Kids love using their imaginations so any tag game that allows them to act as something such as a superhero or a favorite cartoon character will motivate them to play. As long as the tag game you develop allows the kids to hit the psychomotor, cognitive, and affective domain, your game is golden, and your students will definitely enjoy playing it because it will be full of challenges for them.