In paper tournaments I use Pokemon energy cards to represent the basic land type
If it is not a creature or has the Reconfigure ability, you may Equip it immediately after you play it
Of course, due to the nature of this format, which is not a competitive competition and has no authority to officially sanction it, it places emphasis on agreement between players, so there are often cases where it is just allowed when played between friends or through house rules
They do add a nice bit of flair to different card images, and there are tons of options to choose from
To sweeten the deal, we came up with the idea of using the event to sneakily preview a few Morningtide cards
Earthbending Lesson, which turns a target land you control into a 0/0 land creature with haste, then puts four +1/+1 counters on that creature-land