I have done both at some point.. Actually headed the entire City of Austin PTA's Reflection program one year.
Personally, I think you should consider Teacher appreciation. You will automatically get Parent volunteers that want to help. The Reflection program is cumbersome and you do need a bit of a networking.
These are just suggestions based on what our elementary, middle and high school campus's do.
Does your school or PTA usually run Teacher appreciation? At our schools the PTA runs this, but works closely with the Principals secretary for approval on ideas. Previous chairs usually had a notebook that included all of the previous years and what they did. It was easier than reinventing the wheel to use those notes.
For instance, at the high school level, the PTA served a lunch to the teachers and support staff every other month. In the beginning we actually asked for food to be prepared, but then we realized, lots of people just wanted to write a check, so we had a budget to order food. Then we asked parents to donate the desserts. Some of the money came from the PTA funds.. Of course this was always a budget item each year, but it was always approved.
We had a committee of actual volunteers that went to set up, serve and clean up at the school on the day of the event also the volunteers to pick up the food at the business that was cooking for us. . Then we had a list of parents to email each month to remind them to bring in their desserts on a certain day. This is done through emails..
Usually this committee was included on the volunteer sheet handed out at the beginning and end of each school year (for returning parents). Parents could write a check, volunteer to be on the committee to help on the actual day and also a communications person to make the arrangements to inform the staff that it was their day.
We also had a teacher appreciation where EVERY teacher and staff member had a secret pal. Once a month these pals would send in a treat ($5.00 suggested cost) for their teacher or staff member. Sometimes, families would buddy up, so that if a family did not have a lot of money they could share this. Usually at back to school there were lots of 6 packs of soda, plants for the classroom, supplies for the teachers classroom.
We also had each teacher and staff member fill out a questionnaire about their birthdays, favorite snacks, books, interests hobbies.. etc.. It was nice to know their preferences.
Yes these included the office staffs, custodians as well as classroom teachers and and teacher assistants. The PTA and Booster clubs also pitched in each year to give school tshirts to the bus drivers and crossing guards. They LOVED this! They would wear them on spirit days.. It made them part of the campus.
I have made some of best friends by volunteering at the schools. Our goal was to "always be inclusive, never exclusive". Ask the moms AND the dads to volunteer.Meet them in the mornings and let them know youneed help. Also in the afternoons at pick up. Search for the parents, that seem to be new and quiet, people love being asked to help.
Even the parents that always moan and groan.. get them involved and when they complain they think things should be run a different way, Congratulate them on their idea and let them know "they can be Chairman next year!"
Have fun!