Air Corps page 7
Airplane cup from a Kanto-gun unit.

Inscribed 'Kwantung Army Air Corps, Victorious Return Commemorative.'
Beautiful hand-painted fighter plane, clouds, and trees.
Inscribed 'Tachiarai, 4th Air Corps, Abe'. The red name is probably
that of the artist. It looks like the first kanji in 'Hattori'.

Tachiarai is in Fukuoka Prefecture. The IJA established an Air Base
(and the 4th regiment) there in 1919, In 1940 an Army Flight School
was opened. However, it was destroyed in 1945 by U.S. bombers.

I believe the 4th Regiment from Tachiarai was part of the Pearl
Harbor attack force.
This is a rare Navy fighter plane cup from the Kutani kiln.
Beautiful flower and swirls decoration around the rim on both the inside and outside.

Inscribed '
Houkoku-gou  [plane donated to the Navy], (Hokkoku-Gou), Plane Naming Ceremony Commemorative, Ministry of the Navy'.

Planes donated to the Army were designated
Aikoku-gou, while the above phrase was reserved for planes donated to the Navy. Citizen groups often
pooled their money to buy planes and then there was an elaborate naming ceremony held. Between 1932 and 1945 there were around 1800 planes
donated to the Navy. The phrase in parentheses above is probably the name given to the plane. It is called
Hokkoku-gou in Japanese.

I am guessing that this kind of cup was given to the sponsors of the new planes at a naming ceremony.

Note that the two phrases are similar in pronunciation, but the first kanji is completely different. In
Houkoku-gou the first kanji mean 'donate' and in
Hokkoku-gou the first kanji means 'north.'
Japanese fighter plane
Inscribed 'Manchuria, Harbin Air Corps, 11th Regiment.'
Inscribed '1st Air Corps, Commemorative, Nakamura'.