Parent-teacher conferences don't just have to be at school. Developing partnerships with local businesses, restaurants, and cool spaces would allow for variety and excitement and awesomeness.
You could partner with organizations & reserve space at:
• Co-working spaces
• Local start ups
• Bowling alleys
The "conference" when held outside of school could feel more like an exciting family outing instead of a daunting visit to school. And the variety of spaces would give you options throughout the year and beyond.