For a guy teacher, how about a bag of trail mix with a topper or tag that says "Happy Trails" - do the words with your computer and print on a label you can stamp or directly onto cs or you could use Alphabet stamps. (Actually, you can use the "Happy" from a Happy Brithday stamp which just leaves "Trails" for the alpha letters. Two ways to do that -
1. Put a piece of scotch tap over the word Birthday and ink the stamp. Remove the tape and stamp onto your project.
2. Use a marker to color only the word "happy". Breathe hot air onto it and stamp!)
Also stamp Thank you and have your child sign it. Or, do double time technique with brown, beige, forest foliage and a outdoorsy set like Roughing It or Pines.
Anita