That's not a party; that's commanding forced labor.
Look, if (general) you need people to help you out, call them and say, "Hey, I need to get the house painted/the garden refurbished/the wombat waxed, but I can't do it by myself. I can't repay you monetarily, but I will provide food during/afterwards so that you will be rewarded for the great favor you've done me. I understand if that's not your thing, but I sure would love to have you here." And, if people decline, accept the refusal graciously. If no one is able to come, hire a professional to do it for you.