Eiichiro Oda’s attention to details: Luffy’s hercules beetle

In chapter 235, the Strawhats are about to set sail to catch the Knock-Up Stream that is going to take them up to Skypiea. Luffy is late, since the night before he went to Mock Town to bring back the golden treasure that Bellamy stole from Montblanc Cricket after beating him up. However, that issue was quickly resolved. This is the real reason Luffy was late:

He learns that Cricket and his men have modified the Going Merry to be able to carry the Strawhats to the sky, and this is how he decides to thank them:

Later, in chapter 299, Luffy finally rings the golden bell, proving that Montblanc Noland (Cricket’s ancestor) was not a liar.

If you look at the bottom left corner, you will see that they placed Luffy’s beetle in a little cage:

So then, in the cover story for chapter 643, we get a look at Cricket, Masira and Shoujou after the two-year timeskip, and take a look at what Shoujou is carrying on a strap:

Adorable.