I'm dreaming of a farm wedding (for someone else)

We sadly do not have any summer wedding to attend, so I'm dreaming of a farm wedding. I think it would be fun to help one of my sisters with planning. :) Here are some ideas I have so far:

Cute farm wedding invitations:

Source: minted.com via Jennifer on Pinterest

Haybale seats:

Source: loveloansandlinen.blogspot.com via Emily on Pinterest

A cool pre-wedding walk picture:

Source: oncewed.com via Emily on Pinterest

A neat idea for a farm table:

Source: bloom-magazine.eu via Leah on Pinterest

Do you have any ideas for a farm wedding?