Hello Mty, some plant enthusiasts have grown ornamentals indoors by repurposing a glass display cabinet, so that soothes their need for indoor plants even in winter. It also keeps it more manageable for them. Maybe you can see the videos they made, and see if you can adapt them for your early seedlings, till your outside weather improves.
It is quite informative watching the videos, and understand the predicaments they met. Here are some I have been watching. Hope it can help you out.
https://youtu.be/BO5EM6rY1gU
https://youtu.be/PPS_Jrj5glY
https://youtu.be/2DiHPPEi7O8
