Ideas for commemoration

Emma • Mummy to 3 👼🏻, and our 🌈 Arwen Leia born 10.10.2018!!
Hi ladies (and gents), I'm sorry that you find yourselves in this forum as it likely means that you're experiencing loss. We found out on Friday that we had lost our little one, at 11+6. The scan showed no growth since 8 weeks. Today (Monday) should have been our 12 week scan, and the day that we announced our happy news to the world.
I had two medically managed over the weekend (first failed on Friday, the second completed at 05.10 this morning), and I've had some lovely condolences from the friends and family that did know. Along with this, have been suggestions on how my DH and I might cope with our loss, and it got me thinking what may have helped you all in grieving? 
I'm yet to cry, but my mum's suggestion has brought me close after thinking on it. She has suggested that I plant a rose bush/tree in our Pickle's memory, so that we can watch it grow. I was thinking that I could bury Pickle with the roots, so that they are always there and part of the tree. 
What do you all think? Have any of you MC'd before, and have a nice way of commemorating your little one? Pickle was part of our lives and our future for very nearly 3 months (we found out quite early) and I don't want to ever forget. Xxx