Dear mercurylines,
Good day to you. The project that you are asking to be accomplished can be done within a day. What we need to do is I will create your personal account in one social media channel which most of the people do not know about.
For your request, it will be anything that you post in your Pinterest account to be posted to your Tumbler account automatically. So I will create a recipe that will link your pins in a specific board to be automatically posted to tumbler and the name of the board will have a hashtag and a link going back to pinterest will also be present.
If it's a personal account that you have for Pinterest and Tumbler, I need to have your log in details during this process and after finishing the task, you can change your password. I'll do the setting up and teach you how to do it. As part of the package of my service is to teach you how to connect other social media platforms which will enable you to automatically post whatever you post in one specific channel.
Feel free to visit my profile and drop a message there. Have a great day!
All the best,
Wilbert Lirag