Cabazon Dinosaurs might have a few funny photo ops and the gift shop inside one of the dinosaurs had some cool stuff (15-17 years ago when I used to pass it).
Cabazon, CA http://www.cabazondinosaurs.com/main.htm
Tidbit - As seen in the 80's movie, Pee-Wee's Big Adventure!
Not sure what part of TX you'll be through, but if you go through Amarillo, there is Cadillac Ranch (Stanly Marsh's creation...he's what you'd call an eccentric with way too much money and time on his hands). He also has posted signs (look like road signs) around town in Amarillo that are nonsense. Might have a strange picture or phrase on them. Kind of fun to go hunt all them out. Most of them are on the north end of town. Also in Amarillo is the trail of ponies. They are located throughout Amarillo. They are generally in front of businesses and are all painted with either art, business related things, etc. There is the Panhandle Plains History Museum in Canyon. Huge and an awesome museum. Palo Duro Canyon is cool and this time of year you can go see the play "Texas" each night. It's a nationally known play and is really good. In Lubbock you can go to the Buddy Holly museum.
We just went thru the car thingy yesterday! That was so cool! We also stopped at 'big texas" the pictures of the people on the way to the bathroom that holligraphicly change to scary images of them dead scared the ******** out of me! lol
We are in New Mexico right now. I"m watiing on DSD to get out of the shower So that I can use it.
oldest dsd is along. we did try the in and out burger and it was AWESOME!!! We're in LA. now, stopped in AZ for a few days. we went to the tar pits, and a car mesume and vience beach. But it was TO COLD to go in