Siwon revealed the present Kyuhyun gave him.
On December 8th, the Super Junior member tweeted, "Actually, I collect refrigerator magnets that represent each country or a city. Every time the 'Radio Star' Kyuhyun goes overseas, he buys me magnets. When I'm tired because of overnight filming, these gifts are like sweet rain on dry land ^^".
He included a photo of the present that Kyuhyun must have bought in Chile. A portion of the post-it message included in the photo with the magnet was covered, but the visible parts read, "To. Siyuan. It wasn't there ㅠㅠ -Kyu-".
Seems like the Super Junior members are always thinking of each other!
Source: Siwon's Twitter