How to attach pictures on a board without giving it a hole?

Question: How to attach pictures on a board without giving it a hole!?

i want to have something like an expo and i wanna place pics on a blackboard!. i don't wanna use dubbelsided tape or something like a needle!. any suggestions what i can use to keep them on the board and take them off without damage!?Www@QuestionHome@Com

Best Answer - Chosen by Asker:

How about blue tack!? or the double sided tabs you can buy (they are easier to pull off the back afterwards than sticky tape)Www@QuestionHome@Com

I think it's called sticky tack or something!? Maybe that will work!. I've never used it, but people use it at my school a lot, so maybe hopefully that won't cause any damage to the picture!.Www@QuestionHome@Com

magnetsWww@QuestionHome@Com

TapeWww@QuestionHome@Com