What about mini whiteboards? I love these for getting all the pupils involved.
With tenses, you can shout out a verb and ask the pupils to write down the past participle.
With a theme like "booking a hotel", you can read out the room booking and ask them to draw the facts (e.g. draw a double bed, a shower and a 3 for "3 nights").
With sentence work, you can give them a basic sentence, then ask them to insert an adverb or adjective in the correct position.
With vocabulary, you can ask them to write the translation of a given word, or draw a picture, or write down as many words as possible related to a theme (e.g. animals) in 10 seconds.
You can do a class-wide gap-fill exercise -write up a sentence with a missing word and ask them to write down a suitable word to fill the gap.
They are great for numbers - the teacher reads out a number, or a price, or a phone number, or a date, and the pupils write the digits.
I like to run it either as a competition (first three boards shown with a correct answer) or as an exercise to see how many people have understood the rule - so give pupils 10 or 15 seconds to write the answer then shout out "boards up!" and see how many correct answers appear, then give the whole class feedback based on the answers you see. That stops certain pupils feeling picked on for having an incorrect answer.