"Th"

The "Th" sound in English is a difficult one.  I love it though, because it always makes me laugh when my kids say "Thanks"  
Aaron says it "Hanks!"  or "Hanks you!"  (The Hanks...with an s, is my favorite thing!)
Timmy says it "Danks!" or "Dank you!"

I'll be sad when they say it correctly, along with:
"I dot my yay-yaya"  (I have my lamby)
"I hold you!" (hold me!)
"Wa-Wa TUM!"  (Timmy come here!)
"I dot a choo-choo, mom"  (I have a train, mom)
-Aaron
"I got my fings"  (I have my things)
-Timmy