title: Bundle product with dynamic pricing and text box input
body: <p>I use bundle products with custom pricing, but I also need to have a text box input where the user can enter arbitrary information (at not cost). Like a custom option, except that they will not work when using dynamic pricing.</p>
  
  <p>It is possible to hack this in Magento 1 using the info from this blog post:
  <a href="https://amirshakya.wordpress.com/2012/07/08/custom-options-on-a-bundle-product-in-dynamic-pricing/" rel="nofollow">https://amirshakya.wordpress.com/2012/07/08/custom-options-on-a-bundle-product-in-dynamic-pricing/</a></p>
  
  <p>But I don't know how to do this from Magento 2.
  Anyone?</p>