I love the idea of a special dedicated, preferably outdoor, space in church.

We tried this a couple of times...

Prayer Garden

we have a "Prayer garden" that is really a concrete alleyway area outside our basement Fellowship Hall... you can see it from the windows when inside, and it was pretty ugly... We added a fountain, concrete benches - the kids used tiles and stained glass to make mosaic symbols on the top, added potted plants and some garden stepping stones. The concrete benches and stones could represent your "hard" spots, and the way they were transformed shows the beauty and good of what Jesus is doing/did for us.

Bible Garden

We also made an actual Bible garden once (until the trustees decided to plant big bushes right in the middle)! We chose plants that had either biblical names -- Jacob's ladder, Lamb's ear or represented something from a story --  lemon balm, lilies, crown of thorns...

Mosaic Flower Pots

We have also made mosaic pots using symbols from the story, filled them with flower and auctioned them off for a mission offering.

Stone Labyrinth

A stone labyrinth would be amazing! Having it outside would limit some of the interactive prayer tools you could include, but it would be neat to have a dedicated space for that.

Prayer Stones

Or maybe just have a basket of stones that could be used as prayer stones... could add words that remind us of Jesus' suffering in the garden? Or draw pictures of the story onto the stones.

The big takeaway idea... Jesus did something very HARD out of LOVE for US.