Depending on the size and venue the cutouts can be setup differently.
Ceiling hangings These come with a ribbon attached so they only need to be tied or stuck to the ceiling using cello tape.
Cutouts - Metal stands The best option will be to use pre-fabricated metal stands like the one shown below. The cutouts can be stuck to these stands using double side tape. The base of the stand need to be heavy to prevent winds from blowing the stand down.
- Makeshift stands Where there is no wind, these can be made to stand using a photo frame setup like shown in the image below. The back stand can be made using 1 inch thermocol which can be stuck to the cutout using bell pins. This is ideal for 2 feet cutouts in an enclosed halls.
- Garden/outdoor venues Use a 5 feet tall - 1/2 inch PVC pipe and root it to the ground. Use double side tape to stick the cutout to the PVC pipe. If the ground is tiled/floored use a flower pot to root the pipe. When using flower pots you need to strategicly place the pot so that it blends in seamlessly - like near a pillar or on a walkway.