All are really good practical ideas for keeping your students engaged and changing the pace of your class. Really enjoyed too having a chance to see how the group of students reponded to each game. Thank you.

Here's another idea:
Start with a sentence such as "I am going to the moon/When I go to the moon/I will go to the moon/a party/a desert island and I will bring..... (adjust sentence according to your lesson plan and tenses they've learned).
In order to join you on the trip, each pupil must bring something that fits the rule you've chosen, except that you don't tell them what the rule is - they have to figure it out. Some examples - a word beginning with the same letter as each person's first name, a word beginning with the last letter of the previous word, words that contain double letters, etc. The game continues until each pupil has found at least one object that he/she can bring.
 

I used buzz as a warmer, I had good results. I´d try to use the others because they´re great. I´m sure my students will like them.

Hi,
I really liked the ideas, infuse some energy in the students. In fact it really works.
Here is another idea like creating a word ladder if you have a white board or flip-chart.  Start with any word and then let each student make a word with the last alphabet of the previous word. Make it challenging by sharing the word immediately without a pause. Children usually love it even elders too.