My theme is playing trains at Christmas with Lumpy (my nickname for my grandson Liam) My layout is a two level Christmas display. Mostly PW lionel and some MTH. The rest of the year I spend some time working on projects for the display. At the ripe old age of 18 months my grandson has learned to love to push buttons to make things work and move the throttles on the ZWs. This year I'm adding a siding on the lower level to accomodate more lionel operating accessories for him. I've already named it accessory alley. It'll be at the front of the layout so he can watch, touch and operate.
It amazes me how having a grandchild has changed me. I'm less concerned with things I can't change (politics, economy, environment etc) and more focused on the things that matter, having fun with my grandson. My only regret is he lives 4 hours away in MD. My daughter is trying to relocate back to PA this year. When that happens I can see me putting together a small permanent layout in the spare bedroom. It won't be the dream 'model railroad' that I've wanted for years but a bad day playing trains with my grandson is 1000% better than my best day at work.