For all countries outside the US, Priority Small Flat-Rate is $34.95, weight doesn't matter.

Below is countries listed alphabetically with First Class International prices:

• ​Australia First Class International is $14 for 8 ounces or less; $23 for over 8 ounces to 2 pounds
• Canada First Class International is $10 for 8 ounces or less; $16 for over 8 ounces to 2 pounds
• France First Class International is $14 for 8 ounces or less; $23 for over 8 ounces to 2 pounds
• Germany First Class International is $14 for 8 ounces or less; $23 for over 8 ounces to 2 pounds
• Great Britain & Northern Ireland First Class International is $14 for 8 ounces or less; $23 for over 8 ounces to 2 pounds
• Mexico First Class International is $12 for 8 ounces or less; $21 for over 8 ounces to 2 pounds
• Sweden First Class International is $13.50 for 8 ounces or less; $22.50 for over 8 ounces to 2 pounds
  

I will add more once I go through my sales! This can be used as a reference, for those in the US selling & those outside the US buying!!!