Shoe he wore on Yom Kippur: Yoma 78b
How far he would travel, to pray in a Synagogue: Megillah 29a
The extent to which he went, to keep from having living creatures present during sexual relations: Niddah 17a
Praying in the Study Hall, specifically: Berachot 8a; Megillah 29a
Leaned at the Pesach night "Seder" by his teacher Rabbah, but then when he learned by Rav Yosef, Rav Yosef said not to: Pesachim 108a
Wore an old, white, pressed garment during his 30-day mourning period: Moed Katan 23a
Put a ladle on sheaves, to permit carrying the sheaves on Shabbat: Shabbat 142b
In the above case, he said that he actually had use for the sheaves, but he was being stringent to prevent errors by others: Shabbat 142b cursing practitioners of certain errant Halachic practices: Shabbat 120b; Pesachim 104a-b; Taanit 29b; Kiddushin 33b
Abayye's Mother prepared mustard for him on Shabbat, like those who permitted it, but Abayye refused to eat it: Shabbat 140a
R' Chiyya bar Avin reporting how Abayye and Rava leaned while reciting the Prayers of Supplication [Tachanun]: Megillah 22b-23a
Abayye's Statements
Set of Abayye's questions regarding sanctification of animals: Temurah 11b-12a
Set of questions which Abayye asked Rabbah regarding enclosures around walls, permitting drawing water within on Shabbat: Eruvin 19b-20a