The Yoni pictures are available by the Torah Umesorah Center in Brooklyn.

We use Mrs. Grama's books and the kids really enjoy.
The contact number on the books is 732-886-6516.

When teaching about Lag Baomer, I tell the story of R' Akiva working for Kalba Savua, marrying Rachel, learning the Aleph Beis with the kindergarten kids, then going to learn for 24 years...
The next day, I preplan that one of the older Rebbeim or male principal comes into the class. Before he enters, I tell the class there's going to be a new student today. The principal enters and sits down with a name tag "Akiva" and starts acting out Akiva! Sitting in a desk that is too small for him, trying the learn the Aleph Beis...
This is an excellent way to bring the story of R' Akiva to life and is a memory that will remain with the students for many years to come.

I've never heard of a specific song reviewing Shorashim, but what I do with my 3rd grade class is I choose 8 of the most popular shorashim for each Perek and throughout the Perek we keep reviewing those Shorashim. By the end of the year they now 64 shorashim \- their meanings and identifying them in words perfectly due to constant practice and isolating 8 per Perek.
One of the ways of learning these 8 is that I take any song that I know and sing the 8 shorashim to that tune. Each song contains the 8 shorashim. First singing the shoresh, then its meaning and then its spelling, then the next shoresh, it's meaning... And that becomes the Perek's Shoresh song.

Does anyone have ideas for games/ activities to reveiw Chumash words with their Shorashim and the translations of Shorashim?

Is there any way we could see a sample of this? Have you sent it into chinuch.org?

You could also look into Rona Novick's program- BRAVE.

I had a lot of my students moving around and making a lot of noise until I realized that lunch was way too long for them. We had a 1/2 hour. Most of the students finished within 15 minutes. So now we cut the time down and the kids dont have time to act up.

Depending on the age... 1-3 love Ktiva, handwriting. Each of my students has a ktiva workbook in their desk. When ever they finish early, they go continue in their workbooks. Also, you can have stories to read (and you may even give them the opportunity to repeat it to the class when there's time).

Hi We're planning a Brochos Bee in my school. Does anyone have ideas to make it exciting, interactive, or creative in any way?

When students appreciate what davening is, then they are motivated on their own to daven well. From the beginning of the year pump inspiration into the kids by telling them davening stories, having discussions on davening and teaching the meaning of the tefillos, either word by word or about the tefillah's general content.
Something fun that you can do (I think I actually got this idea from this site), is to choose one word from the davening that they have to look for while they are davening and whenever they find it, they put a sticky note on that page. This motivates the children to look in, in order to find "the mystery word". I do this every Friday after Pesach and call is "Siddur Find". Good luck!