Is Nishikyougoku Ramuko a word play of Toushinou Kyouko?
Nishikyougoku Ramuko (西京極ラム子) is a wordplay on Saikyouyaki Ranko (西京焼蘭子), the name of the author of the fictional magical girl series, the story within story Majokko Mirakurun (魔女っ娘ミラクるん), from which Toshinou Kyouko's doujin works are derived. We do actually know the name of the author of Majokko Mirakurun through the eyecatch featuring Toshinou Kyouoko:



Nishikyougoku is the name of a train station on the Hankyu Railway Kyoto Line as well as the name of the westernmost street of Heiankyou, one of several former names for the city now known as Kyoto. Ramu means rum, which refers to Toshinou's favorite ice cream flavor, rum raisin. Saikyouyaki is Kyoto-style grilled fish, and Ranko is just an ordinary feminine name.

A note on the difference in pronunciation of 西京極 and 西京焼: it's how the kanjis are grouped together. 西京極 is 西 + 京極 (west + end of capital) while 西京焼 is 西京 + 焼 (West Capital + grill).