Ben 10

Ben 10 Omnitrix F/X
$14.99
The child I gave the toy to was having a lot of fun and was happy to see it was exactly like the one on TV. As for me I did not see what all the fuss was about. I think the best person to review this toy would be the users themselves - the children. I think it was too expensive for what it does.

Ben 10
$19.99
Ben10 has fantastic 2 person storyline play. My six year old picked it out for his 9 year old brother's birthday, and it has been non-stop fun for them! They love being able to change into all the various creatures. The controls are intuitive enough that the boys figured them out without reading. They love games like that!
If you are looking for a multi-player cooperative game for the Wii, this is a good option.

Ben 10 Alien Force Classic - Size: Child M(7-8)
$19.99
Well it was easier than having the wife make it by hand, so the convenience is what you pay for. It was a very authentic looking costume. Aside from that it's pretty cheaply made. Should have been 10 bucks instead of [...].

Ben 10 Alien Creation Chamber
$29.99
While the IDEA of assembling your own creatures is great, and our son loves putting together the various pieces to create new "guys," this toy is poorly made and will remain forever in our memories as a BAD idea. Our family endured 3 hours of frustration - both child and adult - because this toy is so difficult to enjoy. Each alien requires a TINY grey piece in order to be attached to another part or to the chamber. This is day 2 and several of these have already fallen off and some are lost (no extras are provided!) All the parts are so tiny and difficult to insert that the toy is not appropriate for a 4-year old's manual agility (or a 40-year old) Once we get the alien's parts in the chamber to "create" him, the dials become immobile. Once we mobilize the dials and turn the creation button, it's almost impossible for a grown-up to, as the instructions dictate, to "lock" the parts and the press the button to pop out the new creature. My husband has to come over and press the button every time. VERY frustrating. Many tears and fits later, we will not recommend this toy. Great idea, poor implementation. Definitely not age-appropriate, and definitely not worth $30. Get some legos instead.