My children love guessing games!
"What toy has four wheels, a lightening bolt, is red, and holds the number 95?"
(Lightening McQueen, of course)
Just an example but you get the idea.
Here's what we have started doing in our home.
Grab a paper bag, only because the child can't see through it. A cloth sack works well, also.
Find items that your children know as everyday items.
We used a book, one of our favorites! "Where's My T-R-U-C-K?" By Karen Beaumont
Fold the item up inside.
They can shake it, practice listening. Lift the bag, practice words like heavy or light.
Give them a few clues and let them guess.
I write the clues down and as I give them and then write down the responses. It's fun to go back over it to see how many guesses they needed (counting skills).
We did the same with a few few other items that were "hot ticket" items around out house. Remember, you want your child to be challenged and successful. So, don't pick something that's unfamiliar, out of character. Think of day to day items that they enjoy or use.
All of these things are great opportunities to build vocabulary!!! Teach how to have a conversation and responding to your child in a way you would what them to respond to you.